WO2024113551A1

WO2024113551A1 - Earphone

Info

Publication number: WO2024113551A1
Application number: PCT/CN2023/083722
Authority: WO
Inventors: 严泽腾; 郑泽英; 徐江
Original assignee: 深圳市韶音科技有限公司
Priority date: 2022-08-31
Filing date: 2023-03-24
Publication date: 2024-06-06
Also published as: WO2024045045A1; CN219478097U; CN118138939A; CN117641175A; CN220732968U; CN220823245U; CN219592604U; WO2024045391A1

Abstract

The present application mainly relates to an earphone, comprising a core module and a hook-shaped structure, wherein the core module is located on the front side of an ear in a worn state; at least part of the hook-shaped structure is located on the rear side of the ear in the worn state; the core module has a length between 22 mm and 35 mm, and thus a free end of the core module can extend into the cavum conchae; and a transition part of the hook-shaped structure is configured in a tapered structure, such that the earphone has a smoother and uniform overall appearance. In the worn state, and in a direction along the coronal axis of the human body, it is observed that a connecting end of the core module connected to the hook-shaped structure is closer to the top of a user's head than the free end, and an included angle between the length direction of the core module and the direction of the sagittal axis of the human body ranges from 15° to 60°, such that the transition part of the tapered structure can extend beyond a recessed area between the helix and the tragus of the ear as much as possible, which is beneficial for reducing the risk of excessive interference of the transition part with the skin of a user, improving the degree of wearing comfort of the earphone.

Description

A headset

Technical Field

The present application relates to the technical field of electronic equipment, and in particular to a headset.

Background technique

With the increasing popularity of electronic devices, electronic devices have become an indispensable social and entertainment tool in people's daily lives, and people's requirements for electronic devices are getting higher and higher. Electronic devices such as headphones and smart glasses have also been widely used in people's daily lives. They can be used in conjunction with terminal devices such as mobile phones and computers to provide users with an auditory feast. For headphones, it is easy to have problems with stability and comfort when wearing them.

Summary of the invention

The present application provides an earphone, the earphone comprises a movement module and a hook-shaped structure connected to the movement module, the movement module is located at the front side of the ear in a worn state, and the free end of the movement module not connected to the hook-shaped structure extends into the concha cavity of the ear in a worn state, at least part of the hook-shaped structure is located at the back side of the ear in a worn state, the movement module has a thickness direction, a length direction and a width direction orthogonal to each other, the thickness direction is defined as the direction in which the movement module approaches or moves away from the ear in a worn state, the length of the movement module is greater than the width of the movement module, and the length of the movement module is between 22 mm and 3 mm. 5mm, the hook-shaped structure has a transition portion connected to the movement module, the transition portion is located on the front side of the ear in the worn state, and the area of the outer surface of the transition portion on a reference cross-section perpendicular to the length direction of the hook-shaped structure gradually decreases along the length direction of the hook-shaped structure and in the positive direction away from the movement module. In the worn state, and observed along the direction of the human coronal axis, compared with the free end of the movement module not connected to the hook-shaped structure, the connection end of the movement module connected to the hook-shaped structure is closer to the top of the user's head, and the angle between the length direction and the direction of the human sagittal axis is between 15° and 60°.

In some embodiments, the width of the movement module is between 10 mm and 16 mm.

In some embodiments, the hook-shaped structure has a first reference line segment parallel to the width direction and with the longest length between its orthographic projection on a reference plane perpendicular to the thickness direction and the orthographic projection of the movement module on the reference plane, and the orthographic projection of the transition portion has an inner edge and an outer edge that are respectively continuous arc-shaped transitions, the outer edge is farther away from the first reference line segment than the inner edge in the length direction, and the overall curvature of the inner edge is greater than that of the outer edge.

In some embodiments, the orthographic projection of the transition portion has a second reference line segment, a third reference line segment, a fourth reference line segment, and a fifth reference line segment that are parallel to the length direction and spaced in sequence, and the starting points and end points of the second reference line segment, the third reference line segment, the fourth reference line segment, and the fifth reference line segment fall on the inner edge and the outer edge, respectively, and the point where the first reference line segment intersects with the orthographic projection of the movement module is used as the starting point of the first reference line segment, and the point where the first reference line segment intersects with the orthographic projection of the hook-shaped structure is used as the end point of the first reference line segment; wherein,

The length of the second reference line segment is between 5 mm and 8 mm, and the extension line of the second reference line segment passes through 1/8 of the first reference line segment;

The length of the third reference line segment is between 4 mm and 6.3 mm, and the extension line of the third reference line segment passes through 1/4 of the first reference line segment;

The length of the fourth reference line segment is between 3.5 mm and 5.4 mm, and the extension line of the fourth reference line segment passes through 3/8 of the first reference line segment;

The length of the fifth reference line segment is between 3 mm and 5 mm, and the extension line of the fifth reference line segment passes through a half of the first reference line segment.

In some embodiments, the length of the first reference line segment is between 13 mm and 20 mm.

In some embodiments, the orthographic projection of the hook structure and the orthographic projection of the core module do not overlap.

In some embodiments, the movement module has an inner side surface facing the ear and an outer side surface away from the ear along the thickness direction in the worn state, the hook structure includes an adapter shell connected to the movement module and an elastic metal wire connected to the adapter shell, at least part of the adapter shell is located on the front side of the ear in the worn state, at least part of the elastic metal wire is located on the back side of the ear in the worn state, the area of the outer surface of the adapter shell on the reference cross section gradually decreases along the length direction of the hook structure and in the positive direction away from the movement module, the adapter shell extends toward the inner side surface away from the outer side surface in the thickness direction, and the plane where the elastic metal wire is located intersects with the inner side surface when not worn.

In some embodiments, the movement module includes a movement housing and a speaker disposed in the movement housing. The movement housing is provided with a sound outlet hole on one side facing the ear when in a worn state, and the sound waves generated by the speaker are transmitted through the sound outlet hole. When in a worn state, the movement module cooperates with the concha cavity to form an auxiliary cavity connected to the external auditory canal of the ear, and the sound outlet hole is at least partially located in the auxiliary cavity.

In some embodiments, the auxiliary cavity is semi-open.

In some embodiments, in the wearing state, the movement module and the hook structure jointly clamp the ear area from the front and back sides of the ear area corresponding to the concha cavity.

The beneficial effects of the present application are as follows: in the earphone provided by the present application, the movement module and at least part of the hook-shaped structure are respectively located at the front and rear sides of the ear in the wearing state, so as to allow the earphone to be worn on the ear, and the length of the movement module is between 22 mm and 35 mm, so as to allow the movement module to be worn on the ear. The free end of the core module extends into the concha cavity, and the transition portion of the hook-shaped structure is located in front of the ear in the wearing state, and the transition portion is configured as a tapered structure, so that the overall appearance of the earphone is smoother and more symmetrical. Further, in the wearing state, and observed along the direction of the human coronal axis, the connection end of the core module connected to the hook-shaped structure is closer to the top of the user's head than the free end of the core module not connected to the hook-shaped structure, and the angle between the length direction of the core module and the direction of the human sagittal axis is between 15° and 60°, so that the transition portion with a tapered structure passes over the recessed area between the helix and the tragus of the ear as much as possible, which is conducive to reducing the risk of excessive interference of the transition portion with the user's skin, so as to improve the comfort of the earphone in wearing, and thus take into account both the stability and comfort of wearing.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic diagram of the front profile of the ear of a user described in the present application;

FIG2 is a schematic structural diagram of an embodiment of an earphone provided by the present application;

FIG3 is a schematic diagram of an embodiment of an earphone provided by the present application in a wearing state;

FIG4 is a schematic structural diagram of an embodiment of an earphone provided by the present application;

FIG5 is a schematic structural diagram of an embodiment of an earphone provided by the present application;

FIG6 is a comparison diagram of frequency response curves measured at the same listening position when the movement module is located at different positions on the ear in an embodiment of the earphone provided by the present application;

FIG7 is a schematic cross-sectional structure diagram of an embodiment of the earphone in FIG2 along the A1-A1 section direction;

FIG8 is a schematic cross-sectional structure diagram of an embodiment of the earphone in FIG2 along the A2-A2 section direction;

FIG9 is a schematic structural diagram of an embodiment of an earphone provided by the present application;

FIG10 is a schematic structural diagram of an embodiment of a movement housing provided by the present application;

FIG11 is a schematic structural diagram of an embodiment of a movement housing provided by the present application;

FIG12 is a schematic structural diagram of an embodiment of a bracket provided in the present application;

FIG13 is an enlarged structural diagram of the earphone embodiment in FIG8 in the B1 area;

FIG14 is an enlarged structural diagram of the earphone embodiment in FIG8 in the B2 area;

FIG15 is a schematic structural diagram of an embodiment of a hook-shaped structure provided by the present application;

FIG16 is a schematic cross-sectional view of an embodiment of the hook-shaped structure in FIG15 along the A3-A3 section direction;

FIG17 is a schematic cross-sectional structure diagram of an embodiment of the hook-shaped structure in FIG15 along another cutting direction perpendicular to the A3-A3 cutting direction;

FIG18 is a schematic diagram of the exploded structure of an embodiment of the hook structure in FIG15;

FIG19 is a schematic structural diagram of an embodiment of an earphone provided by the present application;

FIG20 is a schematic structural diagram of an embodiment of an earphone provided by the present application;

FIG21 is a schematic structural diagram of an embodiment of an earphone provided by the present application;

FIG22 is a schematic structural diagram of an embodiment of an earphone provided by the present application;

FIG23 is a schematic structural diagram of an embodiment of an earphone provided by the present application;

FIG24 is a schematic structural diagram of an embodiment of a hook-shaped structure provided by the present application;

FIG25 is a schematic structural diagram of an embodiment of the relative positions of the first coil and the second coil provided by the present application;

FIG26 is a schematic structural diagram of an embodiment of a main control circuit board provided by the present application;

FIG27 is a schematic diagram of the main structure of an earphone according to an embodiment of the present application;

FIG28 is a schematic diagram of the left side structure of the earphone in FIG27;

FIG29 is a schematic diagram of the front side view of the earphone in FIG27 when it is in a worn state and observed along the coronal axis of the human body;

FIG30 is a schematic diagram of the earphone in FIG27 when it is in a worn state and observed from a rear perspective along the sagittal axis of the human body;

FIG31 is a schematic diagram of the front view structure of an embodiment of a headset provided by the present application;

FIG32 is a schematic diagram of the structure of the holding portion facing the ear portion in FIG31;

FIG33 is a schematic diagram of the front side view of the earphone in FIG31 when it is in a worn state and observed along the coronal axis of the human body;

FIG34 is a schematic diagram of the main structure of an earphone according to an embodiment of the present application;

FIG35 is a schematic diagram of the structure of the holding portion facing the ear portion in FIG34;

FIG36 is a schematic diagram of the front view of the earphone in FIG34 when it is in a worn state and observed along the coronal axis of the human body.

Detailed ways

The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is particularly noted that the following embodiments are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following embodiments are only some embodiments of the present application and not all embodiments. All other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

Reference to "embodiment" in this application means that a particular feature, structure or characteristic described in conjunction with the embodiment may be included in at least one embodiment of this application. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

In conjunction with FIG1 , the user's ear 100 may include physiological parts such as the external auditory canal 101, the concha cavity 102, the cymba concha 103, the triangular fossa 104, the antihelix 105, the scaphoid 106, the helix 107, and the antitragus 108. Among them, although the external auditory canal 101 has a certain depth and extends to the eardrum of the ear, for the sake of convenience of description and in conjunction with FIG1 , the external auditory canal 101 specifically refers to its entrance away from the eardrum (i.e., the ear hole) in this application unless otherwise specified. Furthermore, the concha cavity 102, the cymba concha 103, the triangular fossa 104, and other physiological parts have a certain volume and depth; and the concha cavity 102 is directly connected to the external auditory canal 101, that is, it can be simply regarded as the aforementioned ear hole being located at the bottom of the concha cavity 102.

Furthermore, there is also an auricle 109 outside the external auditory canal of the ear 100, which has a certain depth and volume in three-dimensional space compared to the concha cavity 102, the cymba concha 103 and the triangular fossa 104, that is, these parts are respectively concave toward the back side of the ear in the direction close to the user's head, and the auricle 109 is convex toward the front side of the ear in the direction away from the user's head. Among them, the "front side of the ear" described in this application is a concept relative to the "back side of the ear", the former refers to the side of the ear away from the head, such as Figure 1, and the latter refers to the side of the ear facing the head, both of which are for the user's ear. Correspondingly, a concave area is formed between the helix 107 and the auricle 109.

Furthermore, different users may have individual differences, resulting in different shapes, sizes, and other dimensional differences in the ears. For ease of description, and to reduce (or even eliminate) individual differences between different users, a simulator containing a head and its (left and right) ears can be made based on ANSI: S3.36, S3.25 and IEC: 60318-7 standards, such as GRAS 45BC KEMAR, HEAD Acoustics, B&K 4128 series, or B&K 5128 series, to present the scenario of most users wearing headphones 10. Taking GRAS KEMAR as an example, the ear simulator can be any one of GRAS 45AC, GRAS 45BC, GRAS 45CC, or GRAS 43AG; taking HEAD Acoustics as an example, the ear simulator can be any one of HMS II.3, HMS II.3LN, or HMS II.3LN HEC. Therefore, in this application, descriptions such as "the user wears the headset", "the headset is in a wearing state" and "in a wearing state" may refer to the headset described in this application being worn on the ear of the aforementioned simulator. Of course, precisely because different users have individual differences, the headset worn by different users may have certain differences from the headset worn on the ear of the aforementioned simulator, but such differences should be tolerated.

It should be noted that in the fields of medicine and anatomy, three basic planes of the human body can be defined: the sagittal plane, the coronal plane, and the horizontal plane, as well as three basic axes: the sagittal axis, the coronal axis, and the vertical axis. Among them, the sagittal plane refers to a plane perpendicular to the ground along the front-to-back direction of the body, which divides the human body into left and right parts; the coronal plane refers to a plane perpendicular to the ground along the left-to-right direction of the body, which divides the human body into front and back parts; the horizontal plane refers to a plane parallel to the ground along the up-down direction of the body, which divides the human body into upper and lower parts. Correspondingly, the sagittal axis refers to an axis along the front-to-back direction of the body and perpendicular to the coronal plane, the coronal axis refers to an axis along the left-to-right direction of the body and perpendicular to the sagittal plane, and the vertical axis refers to an axis along the up-down direction of the body and perpendicular to the horizontal plane. Furthermore, the "front side of the ear" described in this application is a concept relative to the "back side of the ear". The former refers to the side of the ear away from the head, and the latter refers to the side of the ear facing the head. They are both for the user's ear. Among them, by observing the ear of the above simulator along the direction of the human coronal axis, a schematic diagram of the front side outline of the ear can be obtained as shown in Figure 1.

As an example, in conjunction with Figures 2 to 5, the earphone 10 may include a movement module 11 and a hook structure 12 connected to the movement module 11, the movement module 11 is located on the front side of the ear in the worn state, and at least part of the hook structure 12 is located on the back side of the ear in the worn state, so that the earphone 10 is hung on the ear in the worn state. Among them, the movement module 11 may have a connecting end CE connected to the hook structure 12 and a free end FE not connected to the hook structure 12. Further, the movement module 11 can be configured not to block the external auditory canal in the worn state, so that the earphone 10 acts as an "open earphone". Among them, due to individual differences among different users, when the earphone 10 is worn by different users, the movement module 11 may partially block the external auditory canal, but the external auditory canal is still not blocked.

In order to improve the stability of the earphone 10 when being worn, the earphone 10 may adopt any one of the following methods or a combination thereof. First, at least a portion of the hook-shaped structure 12 is configured as a contoured structure that fits at least one of the back side of the ear and the head, so as to increase the contact area between the hook-shaped structure 12 and the ear and/or the head, thereby increasing the resistance of the earphone 10 to falling off from the ear. Second, at least a portion of the hook-shaped structure 12 is configured as an elastic structure so that it has a certain amount of deformation when being worn, so as to increase the positive pressure of the hook-shaped structure 12 on the ear and/or the head, thereby increasing the resistance of the earphone 10 to falling off from the ear. Third, at least a portion of the hook-shaped structure 12 is configured to abut against the head when being worn, so as to form a reaction force that presses the ear, so that the movement module 11 is pressed against the front side of the ear, thereby increasing the resistance of the earphone 10 to falling off from the ear. Fourthly, the movement module 11 and the hook structure 12 are configured to clamp the antihelix area, the concha cavity area and other physiological parts from the front and back sides of the ear when worn, thereby increasing the resistance of the earphone 10 falling off the ear. Fifthly, the movement module 11 or the auxiliary structure connected thereto is configured to at least partially extend into the concha cavity, the cymba concha, the triangular fossa and the scaphoid, thereby increasing the resistance of the earphone 10 falling off the ear.

As an example, in conjunction with FIG3 , in the wearing state, the free end FE of the movement module 11 can extend into the concha cavity. The movement module 11 and the hook structure 12 can be configured to clamp the ear region corresponding to the concha cavity from both the front and rear sides, thereby increasing the resistance of the earphone 10 falling off the ear, thereby improving the stability of the earphone 10 in the wearing state. For example, the free end FE is pressed and held in the concha cavity in the length direction X1; for another example, the free end FE abuts against the concha cavity in the length direction Y1 and the width direction Z1.

It should be noted that: in the wearing state, the free end FE of the movement module 11 can not only extend into the concha cavity, but also be projected onto the antihelix, or onto the left and right sides of the head and located in front of the ear on the sagittal axis of the human body. In other words, the hook-shaped structure 12 can support the movement module 11 to be worn in the concha cavity, the antihelix, the front of the ear, and other wearing positions.

As an example, in combination with Figures 3 and 4, the movement module 11 may have an inner side surface IS facing the ear and an outer side surface OS away from the ear along the thickness direction X1 in the wearing state, and a connecting surface connecting the inner side surface IS and the outer side surface OS. Among them, the thickness direction X1 can be defined as the direction in which the movement module 11 approaches or moves away from the ear in the wearing state. Furthermore, at least part of the aforementioned connecting surface is located in the concha cavity in the wearing state, and forms a first contact area with the front side of the above-mentioned ear area, and the hook-shaped structure 12 forms a second contact area with the rear side of the above-mentioned ear area in the wearing state, and the aforementioned second contact area and the aforementioned first contact area at least partially overlap in the ear thickness direction of the above-mentioned ear area. In this way, not only can the movement module 11 and the hook-shaped structure 12 clamp the ear from the front and back sides of the ear together, but the clamping force formed is mainly manifested as compressive stress, which is conducive to improving the stability and comfort of the earphone 10 in the wearing state.

It should be noted that: in the wearing state, and observed along the direction of the coronal axis, the movement module 11 can be set to a circular, elliptical, rounded square, rounded rectangle, etc. shape. Among them, when the movement module 11 is set to a circular, elliptical, etc. shape, the above-mentioned connection surface can refer to the arc side of the movement module 11; and when the movement module 11 is set to a rounded square, rounded rectangle, etc. shape, the above-mentioned connection surface can include the lower side LS, upper side US and rear side RS mentioned later. Further, the movement module 11 can have a length direction Y1 and a width direction Z1 that are perpendicular to the thickness direction X1 and orthogonal to each other. Among them, the length direction Y1 can be defined as the direction in which the movement module 11 approaches or moves away from the back of the user's head in the wearing state, and the width direction Z1 can be defined as the direction in which the movement module 11 approaches or moves away from the top of the user's head in the wearing state. Therefore, for the convenience of description, this embodiment takes the movement module 11 set to a rounded rectangle as an example for exemplary description. The length of the core module 11 in the length direction Y1 may be greater than the width of the core module 11 in the width direction Z1.

As an example, in combination with Figures 2, 3 and 5, in the wearing state, and observed along the direction of the human coronal axis, the connection end CE is closer to the top of the head than the free end FE, so that the free end FE can extend into the concha cavity. Based on this, the angle between the length direction Y1 and the direction of the human sagittal axis can be between 15° and 60°. Among them, if the aforementioned angle is too small, it is easy to cause the free end FE to be unable to extend into the concha cavity, and the sound outlet hole 111a on the movement module 11 is too far away from the external auditory canal; if the aforementioned angle is too large, it is also easy to cause the free end FE to be unable to extend into the concha cavity, and the external auditory canal is blocked by the movement module 11. In other words, such a setting allows the free end FE to extend into the concha cavity, and the sound outlet hole 111a on the movement module 11 has a suitable distance from the external auditory canal, so that the user can hear more sound waves generated by the movement module 11 when the external auditory canal is not blocked.

As an example, in conjunction with FIG4 , the orthographic projection of the hook-shaped structure 12 on a reference plane perpendicular to the length direction Y1 (such as the XZ plane in FIG4 ) partially overlaps with the orthographic projection of the free end FE on the same reference plane. Among them, the overlapping area formed by the orthographic projection of the hook-shaped structure 12 on the aforementioned reference plane and the orthographic projection of the free end FE on the same reference plane is located between the inner side surface IS and the outer side surface OS in the thickness direction X1. In this way, not only can the movement module 11 and the hook-shaped structure 12 clamp the ear from the front and back sides of the ear together, but the clamping force formed is mainly manifested as compressive stress, which is beneficial to improve the stability and comfort of the earphone 10 when worn.

Further, in conjunction with FIG. 2 , FIG. 4 , FIG. 5 and FIG. 9 , the hook-shaped structure 12 may include an elastic metal wire 121 connected to the movement module 11 and a battery housing 123 connected to one end of the elastic metal wire 121 away from the movement module 11 , a battery 14 coupled to the movement module 11 is arranged in the battery housing 123 , and the orthographic projection of the battery housing 123 on the above-mentioned reference plane partially overlaps with the orthographic projection of the free end FE on the same reference plane. In this way, when the free end FE abuts against the concha cavity, the battery housing 123 can support the ear from the back side of the ear, which is conducive to improving the stability of the earphone 10 in the wearing state. Among them, the battery housing 123 may include a cover shell 1231 connected to the elastic metal wire 121 and a battery compartment 1232 connected to the cover shell 1231 , and the battery compartment 1232 and the cover shell 1231 cooperate to form a cavity structure for accommodating the battery 14.

As an example, in conjunction with FIG. 5 , the core module 11 may have an upper side US facing away from the external auditory canal along the width direction Z1 and a lower side LS facing the external auditory canal in the wearing state, and a rear side RS connecting the upper side US and the lower side LS, the rear side RS being located at one end facing the back of the head in the length direction Y1 in the wearing state, and at least partially located in the concha cavity. Among them, the edge of the positive projection of the hook-shaped structure 12 on the reference plane perpendicular to the thickness direction X1 (e.g., the YZ plane in FIG. 5 ) toward the side of the core module 11 can be divided into a first section S1 and a second section S2 with a continuous arc transition, and the dividing point DP between the first section S1 and the second section S2 is the position where the aforementioned edge is farthest from the upper side US along the width direction Z1. Further, the overall bending degree of the hook-shaped structure 12 in the first section S1 is greater than the overall bending degree of the hook-shaped structure 12 in the second section S2. In this way, the free end FE is allowed to extend into the concha cavity, and the hook-shaped structure 12 can cooperate with the core module 11 to provide a suitable clamping force.

It should be noted that the above overall curvature can be used to qualitatively describe the curvature of different sections of the hook-shaped structure 12, wherein the curvature radius of each section can be a constant value or continuously variable. Therefore, there is at least one point in the first section S1 whose curvature radius is smaller than the curvature radius of any point in the second section S2. Furthermore, the above overall curvature can also be quantitatively characterized by an average curvature radius, that is, first find the curvature radius of N points on each section and then take the average value.

Furthermore, in the extension direction of the hook structure 12, the length of the second section S2 can be greater than the length of the first section S1, so that the hook structure 12 and the movement module 11 can clamp the ear together and increase the contact area between the hook structure 12 and the user's skin, which is beneficial The invention is used to improve the stability of the earphone 10 when being worn.

In some embodiments, the earphone 10 has a first reference line segment RL1 parallel to the width direction Z1, the starting point of the first reference line segment RL1 is the point where the first reference line segment RL1 intersects with the upper side US, and the end point of the first reference line segment RL1 is the dividing point DP. The second reference line segment RL2, the third reference line segment RL3, and the fourth reference line segment RL4 mentioned later are successively farther and farther away from the starting point of the first reference line segment RL1 in the width direction Z1. Further, the length of the first reference line segment RL1 can be between 13 mm and 20 mm. If the length of the first reference line segment RL1 is too small, it is easy to cause the free end FE to be unable to extend into the concha cavity, and the sound outlet hole 111a on the movement module 11 is too far away from the external auditory canal; if the length of the first reference line segment RL1 is too large, it is also easy to cause the free end FE to be unable to extend into the concha cavity, and the external auditory canal is blocked by the movement module 11. In other words, such a configuration allows the free end FE to extend into the concha cavity, while ensuring that the sound outlet hole 111a on the movement module 11 is at a suitable distance from the external auditory canal, so that the user can hear more sound waves generated by the movement module 11 without blocking the external auditory canal.

Furthermore, a second reference line segment RL2 passing through 1/4 of the first reference line segment RL1 and parallel to the length direction Y1 intersects the first segment S1 and the second segment S2 at a first intersection point P1 and a second intersection point P2, respectively. The distance between the first intersection point P1 and the starting point of the first reference line segment RL1 may be between 9 mm and 15 mm, and the distance between the second intersection point P2 and the starting point of the first reference line segment RL1 may be between 12 mm and 19 mm. A third reference line segment RL3 passing through 1/2 of the first reference line segment RL1 and parallel to the length direction Y1 intersects the first segment S1 and the second segment S2 at a third intersection point P3 and a fourth intersection point P4, respectively. The third intersection point P1 may be between 9 mm and 15 mm, and the distance between the second intersection point P2 and the starting point of the first reference line segment RL1 may be between 12 mm and 19 mm. The distance between P3 and the starting point of the first reference line segment RL1 can be between 11mm and 18mm, and the distance between the fourth intersection P4 and the starting point of the first reference line segment RL1 can be between 12mm and 19mm; the fourth reference line segment RL4 passing through 3/4 of the first reference line segment RL1 and parallel to the length direction Y1 intersects with the first segment S1 and the second segment S2 at the fifth intersection P5 and the sixth intersection P6 respectively, the distance between the fifth intersection P5 and the starting point of the first reference line segment RL1 can be between 12mm and 19mm, and the distance between the sixth intersection P6 and the starting point of the first reference line segment RL1 can be between 12mm and 19mm. In this way, when the free end FE extends into the concha cavity and the sound outlet 111a on the movement module 11 has a suitable distance from the external auditory canal, the hook structure 12 can better fit the ear.

In some embodiments, there is a fifth reference line segment RL5 with the shortest spacing along the length direction Y1 between the second segment S2 and the rear side surface RS, and the length of the fifth reference line segment RL5 can be between 2 mm and 3 mm. If the length of the fifth reference line segment RL5 is too short, it is easy to cause the clamping force of the movement module 11 and the hook structure 12 on the ear to be too large, causing discomfort when wearing; if the length of the fifth reference line segment RL5 is too long, it is easy to cause the clamping force of the movement module 11 and the hook structure 12 on the ear to be too small, causing unstable wearing. In other words, such a setting is to take into account both the stability and comfort of the earphone 10 when worn.

Further, the fifth reference line segment RL5 is defined as follows: the point where the fifth reference line segment RL5 intersects with the rear side surface RS is used as the starting point of the fifth reference line segment RL5, and the point where the fifth reference line segment RL5 intersects with the second segment S2 is used as the end point of the fifth reference line segment RL5. The orthographic projection of the intersection of the first reference line segment RL1 and the upper side surface US along the length direction Y1 intersects with the second segment S2 at the seventh intersection point P7, the orthographic projection of the intersection of the extension line of the first reference line segment RL1 and the lower side surface LS along the length direction Y1 intersects with the second segment S2 at the eighth intersection point P8, the distance between the seventh intersection point P7 and the starting point of the fifth reference line segment RL5 can be between 5mm and 9mm, and the distance between the eighth intersection point P8 and the starting point of the fifth reference line segment RL5 can be between 5mm and 9mm. In this way, the hook structure 12 can better fit the ear while taking into account the stability and comfort of the earphone 10 in the wearing state.

As an example, in combination with Figures 7, 8 and 5, the movement module 11 may include a movement housing 111 connected to the hook structure 12 and a speaker 112 disposed in the movement housing 111. Among them, the movement housing 111 is provided with a sound outlet 111a on the inner side (such as the inner side IS mentioned above) facing the ear in the wearing state, and the sound waves generated by the speaker 112 are propagated through the sound outlet 111a to facilitate transmission into the external auditory canal. It is worth noting that the sound outlet 111a can also be provided on the side of the movement housing 111 corresponding to the lower side LS, and can also be provided at the corner between the aforementioned inner side and the lower side LS. Further, the speaker 112 may include a magnetic circuit system, a voice coil extending into the magnetic circuit system, and a diaphragm connected to the voice coil. The magnetic field generated after the voice coil is energized interacts with the magnetic field formed by the magnetic circuit system, thereby driving the diaphragm to produce mechanical vibrations, and then generating sound through the propagation of a medium such as air.

Further, in conjunction with FIGS. 7 to 9 , the earphone 10 may include a main control circuit board 13 disposed in the movement housing 111 and a battery 14 disposed at an end of the hook structure 12 away from the movement module 11, and the battery 14 and the speaker 112 are respectively coupled to the main control circuit board 13 to allow the battery 14 to power the speaker 112 under the control of the main control circuit board 13. Of course, the battery 14 and the speaker 112 may also be both disposed in the movement housing 111, and the battery 14 may be closer to the connection end CE and the speaker 112 may be closer to the free end FE.

As an example, in combination with FIG. 3 and FIG. 1 , since the concha cavity has a certain volume and depth, after the free end FE extends into the concha cavity, there can be a certain distance between the inner side IS of the movement housing 111 and the concha cavity. In other words, the movement module 11 can cooperate with the concha cavity to form an auxiliary cavity connected to the external auditory canal in the worn state, and the sound outlet 111a is at least partially located in the aforementioned auxiliary cavity. In this way, in the worn state, the sound waves generated by the speaker 112 and propagated through the sound outlet 111a will be restricted by the aforementioned auxiliary cavity, that is, the aforementioned auxiliary cavity can gather the sound waves so that the sound waves can be propagated more into the external auditory canal, thereby increasing the volume and sound quality of the sound heard by the user in the near field, which is conducive to improving the acoustic effect of the earphone 10. Furthermore, since the movement module 11 can be configured not to block the external auditory canal in the worn state, the aforementioned auxiliary cavity can be configured in a semi-open state. Thus, the sound waves generated by the speaker 112 and propagated through the sound outlet 111a are mostly propagated to the external auditory canal, and a small part of them is propagated through the gap between the movement module 11 and the ear (for example, For example, the sound waves from the concha cavity not covered by the movement module 11 are transmitted to the outside of the earphone 10 and the ear, thereby forming a first sound leakage in the far field; at the same time, the movement module 11 generally has an acoustic hole (such as the pressure relief hole 111c mentioned later), and the sound waves transmitted through the aforementioned acoustic hole generally form a second sound leakage in the far field, and the phase of the aforementioned first sound leakage and the phase of the aforementioned second sound leakage are (close to) opposite to each other, so that the two can cancel each other out in opposite phases in the far field, which is beneficial to reduce the sound leakage of the earphone 10 in the far field.

Furthermore, the earphone 10 may include an adjustment mechanism connecting the movement module 11 and the hook structure 12. Different users can adjust the relative position of the movement module 11 on the ear through the adjustment mechanism when wearing the earphone, so that the movement module 11 is located at a suitable position, so that the movement module 11 and the concha cavity form the auxiliary cavity. In addition, due to the existence of the adjustment mechanism, the user can also adjust the earphone 10 to a more stable and comfortable position.

As an example, in conjunction with FIG6 , the earphone 10 is first worn on the simulator, and then the position of the movement module 11 on the ear of the simulator is adjusted, and then the frequency response curve of the earphone 10 is measured by a detector (e.g., a microphone) disposed in the external auditory canal of the simulator (e.g., the position of the eardrum, i.e., the listening position), thereby simulating the listening effect of the user wearing the earphone 10. Among them, the aforementioned frequency response curve can be used to characterize the changing relationship between the vibration magnitude and the frequency; the abscissa of the aforementioned frequency response curve can represent the frequency, in Hz; the ordinate of the aforementioned frequency response curve can represent the vibration magnitude, in dB. In FIG6 , curve 6_1 can represent the frequency response curve when the movement module 11 does not form the aforementioned auxiliary cavity with the concha cavity in the wearing state, and curve 6_2 can represent the frequency response curve when the movement module 11 cooperates with the concha cavity to form the aforementioned auxiliary cavity in the wearing state. Based on this, it can be directly and undoubtedly concluded from the comparison diagram of the frequency response curves shown in Figure 6 that: curve 6_2 is generally located above curve 6_1, that is, compared with the case where the movement module 11 does not form the above-mentioned auxiliary cavity with the concha cavity in the worn state, the movement module 11 forms the above-mentioned auxiliary cavity with the concha cavity in the worn state, which is more conducive to improving the acoustic effect of the earphone 10.

As an example, in conjunction with FIG. 7 , FIG. 9 and FIG. 11 , the movement module 11 may include a flexible insert 1131 disposed outside the movement housing 111 , and the hardness of the flexible insert 1131 is less than the hardness of the movement housing 111 . The movement housing 111 may be a plastic part; the material of the flexible insert 1131 may be silicone, rubber, etc., and may be formed on a preset area of the movement housing 111 by injection molding. Further, the flexible insert 1131 may at least partially cover the area of the movement housing 111 corresponding to the free end FE, so that the movement module 11 at least partially abuts against the cavum concha through the flexible insert 1131 . In other words, the portion of the movement housing 111 that extends into the cavum concha and contacts the cavum concha may be covered by the flexible insert 1131 . In this way, when the movement module 11 is against the concha cavity, for example, when the movement module 11 and the hook structure 12 are arranged to jointly clamp the aforementioned ear area from the front and back sides of the ear area corresponding to the concha cavity of the ear, the flexible insert 1131 acts as a buffer between the movement housing 111 and the ear (for example, the aforementioned ear area) to relieve the pressure of the earphone 10 on the ear, which is conducive to improving the comfort of the earphone 10 when worn.

As an example, the flexible insert 1131 can continuously cover at least part of the area of the core shell 111 corresponding to the rear side RS, the upper side US and the lower side LS. For example, the area of the core shell 111 corresponding to the rear side RS is covered by the flexible insert 1131 by more than 90%, and the area of the core shell 111 corresponding to the upper side US and the lower side LS is covered by the flexible insert 1131 by about 30%. In this way, the comfort of the earphone 10 in the wearing state and the need to set structural parts such as the speaker 112 in the core shell 111 are taken into account.

In some embodiments, when viewed along the thickness direction X1, the flexible insert 1131 may be arranged in a U-shape.

In some embodiments, the portion of the flexible insert 1131 corresponding to the lower side LS can be against the antitragus. The thickness of the portion of the flexible insert 1131 corresponding to the rear side RS can be respectively smaller than the thickness of the portion of the flexible insert 1131 corresponding to the upper side US and the lower side LS, so that good comfort can be obtained when the movement module 11 is against an uneven position in the concha cavity.

As an exemplary embodiment, in combination with Figures 7 and 8, the movement housing 111 may include a movement inner shell 1111 and a movement outer shell 1112 that are buckled together along the thickness direction X1, and the movement inner shell 1111 is closer to the ear than the movement outer shell 1112 when worn. Among them, the parting surface 111b between the movement outer shell 1112 and the movement inner shell 1111 is inclined toward the side where the movement inner shell 1111 is located in the direction close to the free end FE, so that the flexible insert 1131 can be arranged as much as possible in the area of the movement outer shell 111 corresponding to the free end FE. For example: in combination with Figure 11, the flexible inserts 1131 are all arranged in the area of the movement outer shell 111 corresponding to the free end FE, so as to simplify the structure of the movement module 11 and reduce the processing cost.

As an example, in combination with FIG. 7, FIG. 8 and FIG. 11, the movement module 11 may include a flexible coating 1132, and the hardness of the flexible coating 1132 is less than the hardness of the movement housing 111. Wherein, the movement housing 111 may be a plastic part; the material of the flexible coating 1132 may be silicone, rubber, etc., and may be formed on a preset area of the movement housing 111 by injection molding, glue connection, etc. Further, the flexible coating 1132 may be integrally covered on at least part of the outer surface of the flexible insert 1131 and at least part of the outer surface of the movement housing 1112 not covered by the flexible insert 1131, which is conducive to enhancing the consistency of the appearance of the movement module 11. Of course, the flexible coating 1132 may further cover the outer surface of the movement inner shell 1111. Wherein, the hardness of the flexible insert 1131 is less than the hardness of the flexible coating 1132, so as to allow the flexible insert 1131 to be sufficiently soft. In addition, the flexible coating 1132 can also improve the comfort of the earphone 10 when worn, and has a certain structural strength to protect the flexible insert 1131. Further, the area of the outer surface of the flexible insert 1131 can be between 126 ^mm2 and 189 ^mm2 . If the aforementioned area is too small, it is easy to cause the comfort of the movement module 11 to deteriorate when worn; if the aforementioned area is too large, it is easy to cause the volume of the movement module 11 to be too large, and the area where the flexible insert 1131 does not abut against the concha cavity is too large, which deviates from the original intention of setting the flexible insert 1131. Further, the thickness of the flexible coating 1132 is less than the thickness of the movement housing 1112.

As an example, in conjunction with FIG. 11 and FIG. 9 , the movement module 11 may include a flexible cover 1132 disposed between the movement housing 1112 and the flexible cover 1132. The antenna pattern 1141 and/or the touch pattern 1142 and other metal functional patterns are arranged between the movement housing 1112 and the movement housing 1112. Among them, the antenna pattern 1141 can be formed on the outside of the movement housing 1112 by means of laser direct structuring (LDS); the touch pattern 1142 can be formed on the outside of the movement housing 1112 by means of laser direct structuring technology, or it can be a flexible touch circuit board pasted on the outside of the movement housing 1112. Further, the movement housing 1112 is provided with metallized holes connected to the antenna pattern 1141 and the touch pattern 1142 respectively. At this time, since the main control circuit board 13 is arranged in the movement housing 111, for example, the main control circuit board 13 is connected to the movement housing 1112, so that the main control circuit board 13 can be in contact with the inner wall of the corresponding metallized hole through elastic metal parts such as pogo-PIN, metal spring, etc., for example, the antenna pattern 1141 and the touch pattern 1142 are respectively connected to the pogo-PIN131 and pogo-PIN132 welded on the main control circuit board 13. Accordingly, the speaker 112 is located on the side of the main control circuit board 13 away from the movement housing 1112. In this way, compared with the antenna pattern 1141 and the touch pattern 1142 being respectively arranged on the inner side of the movement housing 1112 facing the speaker 112, the antenna pattern 1141 being arranged on the outer side of the movement housing 1112 can increase the distance between it and the main control circuit board 13, that is, increase the antenna clearance area, thereby increasing the anti-interference performance of the antenna pattern 1141; the touch pattern 1142 being arranged on the outer side of the movement housing 1112 can shorten the distance between it and the external signal trigger source (such as the user's finger), that is, shorten the touch distance, thereby increasing the sensitivity of the touch pattern 1142 being triggered by the user.

In some embodiments, the antenna pattern 1141 may surround the periphery of the touch pattern 1142 to fully utilize the space outside the core housing 1112. The antenna pattern 1141 may be arranged in a U-shape, and the touch pattern 1142 may be arranged in a square shape.

Furthermore, the core module 11 may include a microphone 133 welded on the main control circuit board 13, and the microphone 133 may pick up user voice and ambient sound through a sound pickup through hole provided on the core housing 1112. When the main control circuit board 13 is connected to the core housing 1112, the microphone 133 may be further pressed against the core housing 1112.

As an example, in conjunction with FIG. 10 and FIG. 11 , the movement inner shell 1111 may include a bottom wall 1113 and a first side wall 1114 connected to the bottom wall 1113, and the movement outer shell 1112 may include a top wall 1115 and a second side wall 1116 connected to the top wall 1115, and the second side wall 1116 and the first side wall 1114 are buckled with each other along the parting surface 111b, and the two can support each other. Wherein, observed along the width direction Z1, and in the reference direction where the connecting end CE points to the free end FE (for example, the opposite direction of the arrow Y in FIG. 10 and FIG. 11 ), the portion of the first side wall 1114 close to the free end FE gradually approaches the bottom wall 1113 in the thickness direction X1, and the portion of the second side wall 1116 close to the free end FE gradually moves away from the top wall 1115 in the thickness direction X1, so that the parting surface 111b is inclined toward the side where the movement inner shell 1111 is located in the direction close to the free end FE. At this time, the flexible insert 1131 is at least partially arranged on the outside of the second side wall 1116. For example: In combination with FIG. 11 and FIG. 9 , the flexible insert 1131 is not only disposed on the outer side of the second side wall 1116, but is also partially disposed on the outer side of the top wall 1115. Accordingly, the sound outlet hole 111a can be disposed on the bottom wall 1113. Of course, the sound outlet hole 111a can also be disposed on the side of the first side wall 1114 corresponding to the lower side surface LS, and can also be disposed at the corner between the first side wall 1114 and the bottom wall 1113. Furthermore, the antenna pattern 1141 and the touch pattern 1142 and their respective metallized holes can be disposed on the top wall 1115, and the pickup through hole of the microphone 133 can also be disposed on the top wall 1115.

As an example, in combination with FIG. 7 and FIG. 11 , the movement housing 1112 may be provided with an embedding groove at least partially located on the second side wall 1116, and the flexible insert 1131 is embedded in the aforementioned embedding groove, so that the outer surface of the region of the movement housing 1112 not covered by the flexible insert 1131 is continuously transitioned to the outer surface of the flexible insert 1131. Among them, the region where the flexible insert 1131 is located in FIG. 7 can be simply regarded as the aforementioned embedding groove. In this way, it is not only conducive to the accumulation of the flexible insert 1131 on the movement housing 1112 during the injection molding process to prevent the flexible insert 1131 from overflowing, but also conducive to improving the appearance quality of the movement module 11 and avoiding the surface of the movement module 11 from being bumpy.

Further, the second side wall 1116 may include a first sub-side wall segment 1117 and a second sub-side wall segment 1118 connected to the first sub-side wall segment 1117, the first sub-side wall segment 1117 is closer to the top wall 1115 than the second sub-side wall segment 1118 in the thickness direction X1, and the second sub-side wall segment 1118 protrudes toward the outside of the movement housing 111 compared to the first sub-side wall segment 1117. In short, the second side wall 1116 may have a stepped structure. In this way, it is not only beneficial for the flexible insert 1131 to be accumulated on the movement housing 1112 during the injection molding process to avoid overflowing of the flexible insert 1131, but also beneficial for the movement module 11 to better abut against the concha cavity through the flexible insert 1131, thereby improving the comfort of the earphone 10 when worn.

Furthermore, the main control circuit board 13 can be connected to the core housing 1112, for example, fixed on a hot melt column connected to the top wall 1115, and can partially overlap with the first sub-side wall section 1117 in the thickness direction X1; the speaker 112 can partially overlap with the second sub-side wall section 1118 in the thickness direction X1. In this way, it is beneficial to set a sufficiently large speaker 112 in the core housing 111, thereby enhancing the sound volume produced by the earphone 10.

As an exemplary embodiment, in combination with Figures 10 and 8, the movement housing 111 may be provided with a pressure relief hole 111c, and the pressure relief hole 111c enables the space on the side of the speaker 112 facing the main control circuit board 13 to be connected to the external environment, that is, the air can freely enter and exit the aforementioned space. In this way, it is helpful to reduce the resistance of the diaphragm of the speaker 112 during the vibration process. Among them, the pressure relief hole 111c can be facing the top of the head when worn, which is helpful to avoid the sound waves propagating through the pressure relief hole 111c from leaking sound (that is, the above-mentioned second leakage sound) being heard. Based on the Helmholtz resonance cavity, the aperture of the pressure relief hole 111c can be as large as possible, so that the resonant frequency of the second leakage sound is shifted to a higher frequency band (for example, a frequency range greater than 4kHz) as much as possible, which is helpful to further avoid the second leakage sound from being heard.

Furthermore, the movement housing 111 may be provided with a tuning hole 111d, which makes the resonance frequency of the second sound leakage shift to a higher frequency band (e.g., a frequency range greater than 4kHz) as much as possible, which is helpful to further prevent the second sound leakage from being heard. The area of the tuning hole 111d may be smaller than the area of the pressure relief hole 111c, so that the space on the side of the speaker 112 facing the main control circuit board 13 is larger. The sound outlet 111a is connected to the external environment through the pressure relief hole 111c. Furthermore, the distance between the sound outlet 111a and the pressure relief hole 111c in the width direction Z1 is greater than the distance between the sound outlet 111a and the tuning hole 111d in the width direction Z1, so as to avoid the sound waves propagated through the sound outlet 111a and the pressure relief hole 111c respectively from canceling each other out of phase in the near field, which is beneficial to increase the volume of the sound propagated through the sound outlet 111a heard by the user. Accordingly, the tuning hole 111d is closer to the connection end CE than the sound outlet 111a, so as to increase the distance between the two in the length direction Y1, so as to avoid the sound waves propagated through the sound outlet 111a and the tuning hole 111d respectively from canceling each other out of phase in the near field, which is beneficial to increase the volume of the sound propagated through the sound outlet 111a heard by the user.

As an example, in conjunction with FIG. 10 , the sound outlet hole 111a, the pressure relief hole 111c and the sound adjustment hole 111d can be arranged on the movement inner shell 1111, for example, the sound outlet hole 111a is arranged on the bottom wall 1113 and the pressure relief hole 111c and the sound adjustment hole 111d are respectively arranged on the first side wall 1114. Among them, the pressure relief hole 111c and the sound adjustment hole 111d can be respectively arranged on the opposite sides of the first side wall 1114 along the width direction Z1. In this way, since the sound outlet hole 111a, the pressure relief hole 111c and the sound adjustment hole 111d are all arranged on the movement inner shell 1111, the structure of the movement outer shell 1112 is simpler, which is conducive to reducing the processing cost. In addition, since the pressure relief hole 111c and the sound adjustment hole 111d are respectively arranged on the opposite sides of the first side wall 1114 along the width direction Z1, the above-mentioned parting surface 111b can be symmetrically arranged about a reference plane perpendicular to the width direction Z1, which is beneficial to improving the appearance quality of the movement module 11.

As an example, in combination with FIG. 7 and FIG. 8 , the movement module 11 may include a bracket 115 disposed in the movement housing 111, and the bracket 115 and the speaker 112 may be arranged to form an acoustic cavity 116, so that the acoustic cavity 116 is separated from other structures in the movement housing 111 (such as the main control circuit board 13, etc.), which is conducive to improving the acoustic performance of the movement module 11. Among them, the movement housing 111 is provided with an acoustic hole, for example, the acoustic hole is at least one of the pressure relief hole 111c and the sound adjustment hole 111d, and the bracket 115 is provided with an acoustic channel 1151 connecting the acoustic hole and the acoustic cavity 116, so that the acoustic cavity 116 is connected to the external environment, that is, the air can freely enter and exit the acoustic cavity 116, which is conducive to reducing the resistance of the diaphragm of the speaker 112 during the vibration process.

Further, the bracket 115 cooperates with the movement housing 111 to form a first glue-containing groove 1171 surrounding at least a portion of the acoustic hole. The first glue-containing groove 1171 contains a first glue for sealing the assembly gap between the bracket 115 and the movement housing 111, that is, waterproof sealing is performed by the first glue, which is conducive to preventing external sweat, rainwater and other droplets from invading the space where the main control circuit board 13 is located in the movement housing 111. In this way, based on the Helmholtz resonance cavity, compared with the related art that a silicone sleeve is pressed on the movement housing 111 by the bracket 115 for waterproof sealing, the present technical solution uses the first glue for waterproof sealing, which can save the aforementioned silicone sleeve in the related art, and is conducive to shortening the length of the part (including the acoustic channel 1151 and the acoustic hole) of the acoustic cavity 116 connected to the external environment, so that the resonant frequency of the leakage sound (that is, the second leakage sound) formed by propagating through the pressure relief hole 111c is shifted to a higher frequency band (for example, a frequency range greater than 4kHz) as much as possible, thereby further preventing the second leakage sound from being heard.

It should be noted that: when the above-mentioned acoustic hole is a pressure relief hole 111c, the first adhesive groove 1171 surrounds at least a portion of the pressure relief hole 111c; when the above-mentioned acoustic hole is a sound tuning hole 111d, the first adhesive groove 1171 surrounds at least a portion of the sound tuning hole 111d; when the above-mentioned acoustic holes are the pressure relief hole 111c and the sound tuning hole 111d, the first adhesive groove 1171 surrounds at least a portion of the pressure relief hole 111c and the sound tuning hole 111d respectively. Among them, for the convenience of description, and in combination with Figures 8, 10 and 12, this application takes the above-mentioned acoustic holes as the pressure relief hole 111c and the sound tuning hole 111d, and the first adhesive groove 1171 surrounds at least a portion of the pressure relief hole 111c and the sound tuning hole 111d respectively as an example for exemplary description. Furthermore, if the gap between the bracket 115 and the movement shell 111 (for example, its bottom wall 1113) is large enough, or the bottom wall 1113 and the first side wall 1114 in the movement shell 111 are not an integrally molded structure (that is, two separate structures), then the first glue groove 1171 can surround the entire acoustic hole, that is, the first glue groove 1171 is a complete annular structure.

As an example, in combination with FIG. 12 and FIG. 10 , the bracket 115 may include an annular main body 1152 and a docking portion 1153 connected to the annular main body 1152. The annular main body 1152 is sleeved on the periphery of the speaker 112 to form an acoustic cavity 116, and the acoustic channel 1151 runs through the docking portion 1153 and the annular main body 1152. Further, the docking portion 1153 is located between the annular main body 1152 and the core housing 111, and surrounds at least a portion of the above-mentioned acoustic hole, and the docking portion 1153 cooperates with the core housing 111 to form a first glue containing groove 1171. Since the above-mentioned acoustic hole can be a pressure relief hole 111c and a sound adjustment hole 111d, two docking portions 1153 are correspondingly provided, and two first glue containing grooves 1171 are also correspondingly provided. Correspondingly, the docking portion 1153 cooperates with the first side wall 1114 to form the first glue containing groove 1171. In this way, since the bracket 115 is arranged in a ring shape, the speaker 112 is exposed toward the side of the main control circuit board 13, which is conducive to reducing the thickness of the movement module 11 in the thickness direction X1.

As an example, in combination with FIG. 10 and FIG. 8 , a recessed area 1119 may be provided on the inner side of the movement housing 111, the acoustic hole may be provided at the bottom of the recessed area 1119, the movement module 11 may include an acoustic resistance net 118 provided in the recessed area 1119, and the docking portion 1153 presses the acoustic resistance net 118 on the bottom of the recessed area 1119. In this way, it is not only helpful to prevent the bracket 115 from scraping the acoustic resistance net 118 during the assembly process, but also helpful to reduce the assembly gap between the bracket 115, the acoustic resistance net 118 and the movement inner shell 1111, and to prevent the acoustic resistance net 118 from shaking. Among them, the acoustic resistance net 118 can be pre-fixed at the bottom of the recessed area 1119 by double-sided tape or glue; the acoustic resistance net 118 can also be pre-fixed on the protective steel net first, and the aforementioned protective steel net is then pre-fixed at the bottom of the recessed area 1119 by double-sided tape or glue. Correspondingly, since the above-mentioned acoustic holes can be the pressure relief hole 111c and the sound adjustment hole 111d, two recessed areas 1119 are correspondingly provided, and two acoustic resistance nets 118 are also correspondingly provided.

Furthermore, the first glue can be further used to seal the assembly gap between the bracket 115 and the acoustic resistance net 118 and/or the acoustic resistance net 118. An assembly gap is created between the inner wall 118 and the movement housing 111 (eg, the side wall of the recessed area 1119), which is beneficial for further waterproof sealing.

As an exemplary embodiment, in combination with FIG. 8 , FIG. 10 and FIG. 12 , the docking portion 1153 can be used to form the bottom wall and one side wall of the first adhesive containing groove 1171, and the core housing 111 can be used to form the other side wall of the first adhesive containing groove 1171. The groove wall on the core housing 111 is arranged opposite to the groove wall on the docking portion 1153, so that the first adhesive containing groove 1171 has a certain width and depth. Of course, the docking portion 1153 can be used to form one side wall of the first adhesive containing groove 1171, and the core housing 111 can be used to form the bottom wall and the other side wall of the first adhesive containing groove 1171; or, the docking portion 1153 can be used to form one side wall of the first adhesive containing groove 1171 and a part of the bottom wall, and the core housing 111 can be used to form the other side wall of the first adhesive containing groove 1171 and another part of the bottom wall.

As an example, in conjunction with Figures 12 to 14, the speaker 112 may include a body 1121 and an annular support 1122 arranged along the circumference of the body 1121, the lower end of the bracket 115 may be supported on the annular support 1122, the acoustic channel 1151 may be open on the side facing the annular support 1122, and the annular support 1122 further blocks the open part of the acoustic channel 1151. At this time, it can be simply regarded as a part of the first glue groove 1171 surrounding the above-mentioned acoustic hole, so as to facilitate the subsequent use of methods such as glue dispensing process to fill glue in the first glue groove 1171.

In some embodiments, the annular platform 1122 may include a first annular table 1123 and a second annular table 1124 that are arranged in a stepped shape, and the second annular table 1124 is arranged around the periphery of the first annular table 1123; a portion of the lower end of the bracket 115 can be supported on the first annular table 1123, and another portion of the lower end of the bracket 115 can form a spacing area with the second annular table 1124, so that the bracket 115, the annular platform 1122 and the movement shell 111 cooperate to form a second glue groove 1172, and the second glue groove 1172 contains a second glue for sealing the assembly gap between any two of the bracket 115, the annular platform 1122 and the movement shell 111 to perform corresponding waterproof sealing.

In some embodiments, the upper end of the bracket 115 can be placed on the body 1121 and cooperate with the body 1121 to form a third glue groove 1173, which contains a third glue for sealing the assembly gap between the bracket 115 and the body 1121 to perform corresponding waterproof sealing.

It should be noted that: in the specific assembly process of the movement module 11, the following process steps may be included, and the order of all process steps may be adjusted as needed: 1) pre-fix the acoustic resistance net 118 at the bottom of the recessed area 1119 by double-sided adhesive; 2) fix the speaker 112 on the bottom wall 1113, and dispense glue to the assembly gap between the two, and the corresponding glue portion is accumulated on the second annular table 1124 of the speaker 112; 3) before the glue in step 2) is cured, fix the bracket 115 on the speaker 112, wherein the lower end of the bracket 115 supports On the first annular table 1123 of the speaker 112, the space between the lower end of the bracket 115 and the second annular table 1124 is also filled with glue, the docking portion 1153 of the bracket 115 presses the acoustic resistance net 118, and cooperates with the first side wall 1114 to form a first glue groove 1171, the upper end of the bracket 115 is placed on the main body 1121, and cooperates with the main body 1121 to form a third glue groove 1173; 4) Glue is applied to the first glue groove 1171, the third glue groove 1173 and the assembly gap between the lower end of the bracket 115 and the speaker 112 and the movement inner shell 1111. Among them, since the assembly gap between the lower end of the bracket 115 and the speaker 112 and the movement inner shell 1111 is very close to the first glue groove 1171, the assembly gap between the lower end of the bracket 115 and the speaker 112 and the movement inner shell 1111 can be simply regarded as a continuation of the first glue groove 1171, that is, the first glue groove 1171 and the second glue groove 1172 can be connected.

As an example, in combination with Figures 15 to 18 and Figure 7, the hook-shaped structure 12 may include a transfer housing 122 connected to the movement module 11, and the transfer housing 122 may be pre-formed with a receiving cavity 124, and the earphone 10 may include an electronic component 15 subsequently installed in the receiving cavity 124. Among them, the connection method between the transfer housing 122 and the movement module 11 may be one or a combination of assembly methods such as snap connection, welding, glue connection, threaded connection and screw connection. In this way, compared with the electronic component 15 being arranged in the movement module 11 in the related art, the present technical solution is not only conducive to saving the space of the movement module 11, making it more compact and small in structure, but also conducive to simplifying the structure of the movement module 11, making it more efficient to assemble, and also conducive to reasonably arranging the relative positions of various structural components in the earphone 10, so that both the movement module 11 and the hook-shaped structure 12 can be fully utilized.

It should be noted that: the adapter shell 122 is pre-formed with a accommodating cavity 124, which may mean that the accommodating cavity 124 is formed at the same time when the adapter shell 122 is molded, rather than being formed by processing after the adapter shell 122 is molded. For example: the adapter shell 122 is a plastic shell, and the corresponding accommodating cavity 124 can be obtained after the plastic shell is injection molded by setting a corresponding core. Correspondingly, the subsequent installation of the electronic component 15 in the accommodating cavity 124 may refer to the electronic component 15 and the adapter shell 122 being non-integrally molded structural parts. For example: the adapter shell 122 is a plastic shell, and the electronic component 15 is not integrally injection molded in the plastic shell by means of an insert. Based on this, the description of the adapter shell 122 pre-formed with a through hole 1251, a blind hole 1252 and a through hole 1253 mentioned in the following text is the same or similar to this, and will not be repeated here. Of course, the accommodating cavity 124 can also be obtained by means of a drilling process after the adapter shell 122 is formed, and the through hole 1251, the blind hole 1252 and the through hole 1253 can also be obtained by means of a drilling process after the adapter shell 122 is formed.

As an example, in conjunction with FIG7 , the electronic component 15 can be coupled to the main control circuit board 13 to achieve electrical connection between the hook structure 12 and the movement module 11, and the adapter housing 122 can be plugged and fixed with the movement housing 111 to achieve structural connection between the hook structure 12 and the movement module 11, which is simple and reliable. Among them, the aforementioned plug-in fixation can refer to one of the adapter housing 122 and the movement housing 111 partially extending into the other along the assembly direction and then plugged and fixed with the help of other limiting structures such as latches, and the assembly direction of the aforementioned limiting structure is not parallel to the aforementioned assembly direction; the aforementioned plug-in fixation can also refer to one of the adapter housing 122 and the movement housing 111 partially extending into the other. It can be plugged and fixed without the aid of the aforementioned limiting structure.

As an example, in combination with Figures 7, 10 and 16, the adapter housing 122 can be provided with a first snap-on structure 1221, and the core housing 111 can be provided with a second snap-on structure 1222. The first snap-on structure 1221 extends into the core housing 111, and snaps with the second snap-on structure 1222, so that the adapter housing 122 and the core housing 111 are snap-on fixed, and the two are directly plugged and fixed without the aid of other limiting structures, which is simple and reliable. Among them, the first snap-on structure 1221 can be integrally provided on the adapter housing 122, and two can be relatively spaced apart in the thickness direction X1; the second snap-on structure 1222 can be integrally provided on the core inner shell 1111, and is provided one-to-one with the first snap-on structure 1221.

As an example, in conjunction with FIG. 7 , the earphone 10 may include a flexible circuit board 16, which may be at least partially disposed in the accommodating cavity 124 to connect with the electronic component 15 and extend into the movement housing 111, so that the electronic component 15 is connected to the main control circuit board 13 through the flexible circuit board 16. For example, the electronic component 15 is welded to one end of the flexible circuit board 16 by means of surface mount technology (SMT), and the other end of the flexible circuit board 16 and the main control circuit board 13 are buckled by means of a BTB connector. Among them, the speaker 112 may be arranged to be connected to the flexible circuit board 16 on the extension path of the flexible circuit board 16, for example, the lead of the speaker 112 is welded on the corresponding area of the flexible circuit board 16, so that the speaker 112 is also connected to the main control circuit board 13 through the flexible circuit board 16, so that the lead of the speaker 112 does not need to be extended to connect with the main control circuit board 13, which is conducive to simplifying the wiring structure of the earphone 10 and reducing the production cost.

As an exemplary embodiment, in combination with Figures 16 and 15, the adapter shell 122 may be pre-formed with a through hole 1251 that is connected to the accommodating cavity 124, and the electronic component 15 may include an electrode terminal 151 that is at least partially disposed in the through hole 1251. The electrode terminal 151 may be a retractable elastic component such as a pogo-PIN, or a non-retractable rigid component such as a metal column. Among them, the aperture of the through hole 1251 may be larger than the outer diameter of the electrode terminal 151 to facilitate the subsequent installation of the electrode terminal 151. Of course, the electrode terminal 151 may also be integrally formed with the adapter shell 122 in the form of an insert. Furthermore, the electrode terminal 151 may be oriented toward the ear in the worn state, so that it is invisible in the worn state, which is conducive to improving the appearance quality of the headset 10 in the worn state.

It should be noted that: when the electrode terminal 151 is configured as a retractable elastic component such as a pogo-PIN, the extension direction of the electrode terminal 151 can be its retractable direction; and when the electrode terminal 151 is configured as a non-retractable rigid component such as a metal column, the extension direction of the electrode terminal 151 can be the direction of its axis.

Furthermore, a plurality of electrode terminals 151 may be provided according to actual usage requirements, for example, for charging, detection, etc.

In some embodiments, the electrode terminal 151 may include a positive charging terminal 1511 and a negative charging terminal 1512 that are spaced apart from each other, and the positive charging terminal 1511 and the negative charging terminal 1512 may be respectively disposed in respective through holes 1251, so that the earphone 10 can be charged through the electrode terminal 151. Of course, only one of the positive charging terminal 1511 and the negative charging terminal 1512 may be disposed on the adapter housing 122, and the other may be disposed on other housings in the hook structure 12, such as the battery housing 123, or on the movement inner housing 1111.

In some embodiments, the electrode terminal 151 may include a detection terminal 1513 spaced apart from the positive charging terminal 1511 and the negative charging terminal 1512, and the detection terminal 1513 may be used to perform detection functions such as charging detection, detection of the earphone 10 being placed in or taken out of the charging box, etc. Of course, the detection terminal 1513 may also be replaced by an electronic component such as a Hall sensor.

In some embodiments, when viewed along the extension direction of the electrode terminal 151 , the connecting lines between the positive charging terminal 1511 , the negative charging terminal 1512 , and the detection terminal 1513 may form a triangle, such as an equilateral triangle.

In some embodiments, when viewed along the extension direction of the electrode terminal 151, the positive charging terminal 1511, the negative charging terminal 1512, and the detection terminal 1513 can be arranged in a line segment spaced apart from each other, for example, in a straight line segment. Among them, the distance between the positive charging terminal 1511 and the negative charging terminal 1512 can be greater than the distance between the negative charging terminal 1512 and the detection terminal 1513. For example, the negative charging terminal 1512 is located between the positive charging terminal 1511 and the detection terminal 1513, and the distance between the positive charging terminal 1511 and the negative charging terminal 1512 is greater than the distance between the negative charging terminal 1512 and the detection terminal 1513; for another example, the detection terminal 1513 is located between the positive charging terminal 1511 and the negative charging terminal 1512. In this way, when the space for setting the electrode terminal 151 on the adapter housing 122 is limited, the distance between the positive charging terminal 1511 and the negative charging terminal 1512 is increased as much as possible, which is conducive to avoiding a short circuit between the two.

As an example, in conjunction with FIG. 15 , a boss 126 may be provided on the outside of the adapter housing 122, and a through hole 1251 further penetrates the boss 126, so that a plurality of electrode terminals 151 are exposed at the boss 126. In this way, the boss 126 makes the uneven part of the adapter housing 122 due to a certain curvature become flat, so as to facilitate the arrangement of the electrode terminal 151. Among them, the positive charging terminal 1511, the negative charging terminal 1512 and the detection terminal 1513 may be arranged in sequence along the length direction of the boss 126.

As an example, in conjunction with Figures 15 to 17, the hook structure 12 may include a magnet 127, and the magnet 127 and the electrode terminal 151 may be exposed on the same side of the adapter shell 122, that is, both may be visible on the same side surface of the adapter shell 122, so that the magnet 127 is closer to the outside world to which the exposed end of the electrode terminal 151 faces, thereby shortening the distance between the magnet 127 and the magnetic attraction structure used to cooperate with the magnet 127 in a charging device such as a charging box, or the distance between the Hall sensor used to cooperate with the magnet 127, which is beneficial to improving the reliability of functions such as charging and detection. Among them, the magnet 127 and the electrode terminal 151 may be arranged adjacent to each other to allow the magnet 127 to cooperate with the magnetic attraction structure in a charging device such as a charging box, so that the electrode terminal 151 cooperates with the electrode terminal in the charging device to facilitate charging. Corresponding The boss 126 can protrude from the adapter housing 122 around the magnet 127, that is, the magnet 127 can be lower than the boss 126, so that the electrode terminal 151 can contact the electrode terminal in a charging device such as a charging box. Of course, in an embodiment in which the magnet 127 cooperates with a Hall sensor in a charging device such as a charging box for detection, the magnet 127 is arranged adjacent to the electrode terminal 151, and the electrode terminal used to cooperate with the electrode terminal 151 in a charging device such as a charging box can also be arranged adjacent to the aforementioned Hall sensor, which is conducive to reducing the area used to carry the aforementioned electrode terminal and the aforementioned Hall sensor in a charging device such as a charging box.

Further, the hook structure 12 may include a flexible coating 128, and the hardness of the flexible coating 128 is less than the hardness of the adapter shell 122. Among them, the adapter shell 122 may be a plastic part; the material of the flexible coating 128 may be silicone, rubber, etc., and may be formed on the adapter shell 122 by injection molding, glue connection, etc. Further, the flexible coating 128 may cover the adapter shell 122 and the magnet 127, so that the magnet 127 is not exposed and the electrode terminal 151 is exposed, that is, the magnet 127 is invisible and the electrode terminal 151 is visible. In this way, the use requirements of the electrode terminal 151 can be met, and the magnet 127 can be shielded to prevent it from being exposed and worn or affecting the appearance quality. In addition, the flexible coating 128 is also conducive to improving the comfort of the earphone 10 when wearing. Among them, the thickness of the flexible coating 128 is less than the thickness of the adapter shell 122.

As an example, in conjunction with FIG. 16 , the adapter housing 122 may be pre-formed with a blind hole 1252 that is not connected to the accommodating chamber 124, so as to increase the waterproof and dustproof performance of the accommodating chamber 124. The magnet 127 may be at least disposed in the blind hole 1252 and exposed through the open end of the blind hole 1252. In this way, it is not only helpful to reduce the thickness of the adapter housing 122 in the area where the magnet 127 is located, but also helpful to improve the appearance quality of the earphone 10 in the area where the magnet 127 is located. Of course, the blind hole 1252 may also be configured as a through hole.

As an example, in conjunction with FIG. 15 , when viewed along the extension direction of the electrode terminal 151, the plurality of electrode terminals 151 may be arranged at intervals to form a line segment, such as a straight line segment or a broken line segment. Among them, the magnet 127 may be located on any side of the aforementioned line segment, or the magnet 127 intersects with the aforementioned line segment and is at least partially located between any two adjacent electrode terminals 151. For example: the number of magnets 127 is one, and the magnet 127 is located on one side of the aforementioned line segment as a whole, or intersects with the aforementioned line segment and is located between any two adjacent electrode terminals 151 as a whole. For another example: the number of magnets 127 is two, one magnet 127 is located on one side of the aforementioned line segment as a whole, and the other magnet 127 is located on the other side of the aforementioned line segment as a whole. For another example: the number of magnets 127 is one, a part of the magnet 127 intersects with the aforementioned line segment and is located between any two adjacent electrode terminals 151, and the other part is located below the electrode terminal 151 in the aforementioned extension direction.

As an example, in conjunction with FIG. 15 , the plurality of electrode terminals 151 may include a charging positive terminal 1511, a charging negative terminal 1512, and a detection terminal 1513 arranged in a straight line segment. Among them, the magnet 127 may be located on one side of the aforementioned straight line segment. Further, along the extension direction of the electrode terminal 151, the center of the magnet 127 has a first distance, a second distance, and a third distance from the center of the charging positive terminal 1511, the charging negative terminal 1512, and the detection terminal 1513, respectively, and the third distance is greater than the first distance and the second distance, respectively, to prioritize the reliability of charging. It is worth noting that: in an embodiment in which the hook-shaped structure 12 is provided with a flexible coating 128, in order to facilitate the determination of the relative positional relationship between the magnet 127, the charging positive terminal 1511, the charging negative terminal 1512, and the detection terminal 1513, the flexible coating 128 may be removed first.

As an example, in conjunction with Figures 16 to 18, the electronic component 15 may include an electrode terminal 151 and a microphone 152, and the adapter housing 122 may be pre-formed with a through hole 1251 and a through hole 1253 that are connected to the accommodating cavity 124 and the accommodating cavity 124, respectively. Among them, due to the different functions of the electrode terminal 151 and the microphone 152, the through hole 1251 and the through hole 1253 may be located on different side walls of the adapter housing 122. Based on this, the electrode terminal 151 may be at least partially disposed in the through hole 1251, and the microphone 152 may be disposed in the accommodating cavity 124, and pick up the sound outside the earphone 10 (such as user voice, environmental sound) through the through hole 1253. In this way, by reasonably arranging the relative positions of the electrode terminal 151 and the microphone 152, the space of the accommodating cavity 124 can be fully utilized, and the structure of the earphone 10 is therefore more compact and compact. Furthermore, the earphone 10 may include a support assembly 17 at least partially disposed in the accommodating cavity 124, and the support assembly 17 may respectively support and fix the electrode terminal 151 and the microphone 152 on the side walls corresponding to the through hole 1251 and the through hole 1253. In this way, it is not only helpful to prevent the electrode terminal 151 and the microphone 152 from being separated from the adapter housing 122, but also helpful to increase the waterproof and dustproof performance of the electronic component 15, and the structure is simple and reliable.

As an example, in conjunction with FIG. 18 , the flexible circuit board 16 may include a first circuit board portion 161, a second circuit board portion 162, and a third circuit board portion 163 of an integrated structure, the electrode terminal 151 is welded to the first circuit board portion 161, the second circuit board portion 162 is bent relative to the first circuit board portion 161, and the microphone 152 is welded to the third circuit board portion 163 and bent relative to the second circuit board portion 162. In other words, after the flexible circuit board 16 is bent twice, the first circuit board portion 161, the second circuit board portion 162, and the third circuit board portion 163 may correspond to three adjacent sides of the hexagonal structure. Among them, one end of the second circuit board portion 162 away from the third circuit board portion 163 is connected to the first circuit board portion 161, and the other parts are not connected to the first circuit board portion 161. In this way, after the flexible circuit board 16 and the electrode terminals 151 and the microphone 152 thereon are assembled in the adapter shell 122, the operator is allowed to first press the end of the second circuit board portion 162 connected to the first circuit board portion 161 to make it as flush as possible with the first circuit board portion 161 to avoid the support component 17 that is assembled subsequently.

In some embodiments, the transfer housing 122 may include two housings whose parting surfaces are perpendicular to the extension direction of the electrode terminal 151, and the two housings are buckled together to form the accommodating cavity 124. The support assembly 17 may be integrally formed with one of the housings to respectively support (or press) the electrode terminal 151 and the microphone 152 when the two housings are buckled together. Alternatively, at least one of the first support member for supporting the electrode terminal 151 and the second support member for supporting the microphone 152 in the support assembly 17 may be independent of the transfer housing 122 to allow the two housings to be buckled together. When the two shells are engaged, the supporting assembly 17 is respectively supported (or pressed) by the electrode terminal 151 and the microphone 152, or after the two shells are engaged, the supporting assembly 17 is assembled to respectively support (or press) the electrode terminal 151 and the microphone 152.

In some embodiments, at least the portion of the adapter housing 122 corresponding to the accommodating cavity 124 is a complete housing structure. Among them, at least the first support member of the support assembly 17 for supporting the electrode terminal 151 and the second support member for supporting the microphone 152 can be independent of the adapter housing 122 to at least facilitate the assembly of the electrode terminal 151.

As an example, in conjunction with FIG18 , the support assembly 17 can be independent of the adapter housing 122 and inserted into the accommodating cavity 124. In this way, since the support assembly 17, the electrode terminal 151 and the microphone 152 can be independent of the adapter housing 122, they can be assembled in a certain sequence, which is conducive to avoiding unnecessary interference in the structure and making the assembly efficiency higher.

In some embodiments, the first support member for supporting the electrode terminal 151 and the second support member for supporting the microphone 152 in the support assembly 17 can be independent of the adapter housing 122, that is, the first support member and the second support member are independent of each other to respectively support (or press) the electrode terminal 151 and the microphone 152. In this way, the first support member and the second support member in the support assembly 17 can be designed differently according to actual needs.

In some embodiments, the support assembly 17 can be an integrally formed structural member, that is, the first support member for supporting the electrode terminal 151 and the second support member for supporting the microphone 152 in the support assembly 17 are connected to each other, which is not only conducive to simplifying the structure of the support assembly 17, but also conducive to avoiding the first support member and the second support member being too small to be difficult to assemble. Among them, the support assembly 17 can be tightly fixed with the cavity wall of the accommodating cavity 124 after being inserted into place, that is, the support assembly 17 has a certain damping during the insertion or removal process, and the structure is simple and reliable. Correspondingly, the cavity wall of the accommodating cavity 124 can be provided with guide grooves and limit grooves that cooperate with the support assembly 17. Of course, the support assembly 17 can be further glued to the cavity wall of the accommodating cavity 124 by means of a glue dispensing process.

As an example, in conjunction with FIG. 17 and FIG. 18 , the dimensions of at least part of the support assembly 17 and the accommodating cavity 124 in at least one reference direction perpendicular to the insertion direction of the support assembly 17 relative to the accommodating cavity 124 (e.g., the direction indicated by the arrows in FIG. 17 and FIG. 18 ) can be set to gradually decrease along the aforementioned insertion direction, so that the support assembly 17 can be extended into the spacing area between the electrode terminal 151 and the microphone 152. In other words, the dimensions of at least part of the support assembly 17 in at least one reference direction perpendicular to the aforementioned insertion direction can be set to gradually decrease along the aforementioned insertion direction, and the dimensions of at least part of the accommodating cavity 124 in the same reference direction can be set to gradually decrease along the aforementioned insertion direction, and the change trends of the two are the same or similar, which is conducive to the support assembly 17 being tightly matched and fixed with the cavity wall of the accommodating cavity 124 after being inserted into place.

As an example, in conjunction with FIGS. 16 to 18 , the cavity wall of the accommodating cavity 124 may include a first cavity wall 1241 and a second cavity wall 1242 arranged side by side and spaced apart from each other, and a third cavity wall 1243 connecting the first cavity wall 1241 and the second cavity wall 1242. The through hole 1251 may be arranged on the first cavity wall 1241, and the through hole 1253 may be arranged on the third cavity wall 1243. Accordingly, the supporting assembly 17 may include a bottom plate 171 and a first side plate 172 connected to the bottom plate 171, for example, in an L-shaped structure. One side main surface of the bottom plate 171 may be arranged opposite to the first cavity wall 1241 and support the electrode terminal 151; one side main surface of the first side plate 172 may be arranged opposite to the third cavity wall 1243 and support the microphone 152. In this way, after the electrode terminal 151 and the microphone 152 are assembled in place, the support assembly 17 is inserted into the accommodating cavity 124 along the above-mentioned insertion direction and after being inserted into place, the electrode terminal 151 and the microphone 152 can be supported respectively by the bottom plate 171 and the first side plate 172.

Furthermore, the orthographic projection of the microphone 152 on the first cavity wall 1241 may cover at least a portion of the electrode terminal 151 , for example, the microphone 152 covers a portion of the positive charging terminal 1511 , which is conducive to a more compact structure of each part.

In some embodiments, the size of at least part of the bottom plate 171 and the accommodating cavity 124 in the first reference direction RD1 perpendicular to the insertion direction and parallel to the main surface of one side of the bottom plate 171 can be set to gradually decrease along the insertion direction, that is, one of the front end and the rear end of the bottom plate 171 in the insertion direction or the part between the front end and the rear end can be set to keep the size in the first reference direction RD1 unchanged along the insertion direction. Among them, the size of the first side plate 172 and the accommodating cavity 124 in the second reference direction RD2 perpendicular to the insertion direction and parallel to the main surface of one side of the first side plate 172 can be set to remain unchanged along the insertion direction.

In some embodiments, the size of at least part of the first side plate 172 and the accommodating cavity 124 in the second reference direction RD2 perpendicular to the insertion direction and parallel to the main surface of one side of the first side plate 172 can be set to gradually decrease along the insertion direction, that is, one of the front end and the rear end of the first side plate 172 in the insertion direction or the part between the front end and the rear end can be set to keep the size in the second reference direction RD2 unchanged along the insertion direction. Among them, the size of the bottom plate 171 and the accommodating cavity 124 in the first reference direction RD1 perpendicular to the insertion direction and parallel to the main surface of one side of the bottom plate 171 can be set to remain unchanged along the insertion direction.

In some embodiments, the dimensions of at least a portion of the first side plate 172 and the accommodating cavity 124 in a second reference direction RD2 perpendicular to the above-mentioned insertion direction and parallel to the main surface of one side of the first side plate 172 can be set to gradually decrease along the above-mentioned insertion direction, and the dimensions of at least a portion of the first side plate 172 and the accommodating cavity 124 in a second reference direction RD2 perpendicular to the above-mentioned insertion direction and parallel to the main surface of one side of the first side plate 172 can be set to gradually decrease along the above-mentioned insertion direction.

It should be noted that: for the support assembly 17 , the size of the bottom plate 171 in the first reference direction RD1 can be simply regarded as the width of the bottom plate 171 , and the size of the first side plate 172 in the second reference direction RD2 can be simply regarded as the height of the first side plate 172 .

As an example, in conjunction with FIGS. 16 to 18, the support assembly 17 may include a second side plate 173 connected to the bottom plate 171, the second side plate 173 and the first side plate 172 are arranged side by side and spaced apart on the same side of the bottom plate 171, the second side plate 173 abuts against the second cavity wall 1242 to provide a supporting force for the bottom plate 171 toward the electrode terminal 151, which is conducive to improving the support assembly 17 for the electrode terminal 151. In the embodiment where the electrode terminal 151 includes a positive charging terminal 1511 and a negative charging terminal 1512 spaced apart from each other in a direction perpendicular to the insertion direction, the second side plate 173 may be located between the positive charging terminal 1511 and the negative charging terminal 1512, so that each part of the electrode terminal 151 is evenly stressed, which is conducive to further improving the supporting effect of the support assembly 17 on the electrode terminal 151.

As an example, in conjunction with Figures 16 to 18, the cavity wall of the accommodating cavity 124 may include a fourth cavity wall 1244 connecting the first cavity wall 1241 and the second cavity wall 1242 and opposite to the third cavity wall 1243. Among them, the first cavity wall 1241 and the second cavity wall 1242 can be generally arranged as a planar structure parallel to each other, and the third cavity wall 1243 and the fourth cavity wall 1244 can be generally arranged as an arc surface structure expanding outward from each other, so as to expand the volume of the accommodating cavity 124 as much as possible when the volume of the transfer housing 122 is limited. Correspondingly, the support assembly 17 may include a third side plate 174 connected to the bottom plate 171, the first side plate 172 and the third side plate 174 are respectively located at the two side edges of the bottom plate 171 in a direction perpendicular to the above-mentioned insertion direction, and the second side plate 173 is located between the first side plate 172 and the third side plate 174. The third side plate 174 abuts against the fourth cavity wall 1244 to provide a supporting force for the first side plate 172 toward the microphone 152 , which is beneficial to improve the supporting effect of the supporting assembly 17 on the microphone 152 .

Further, relative to the bottom plate 171, the height of the second side plate 173 may be greater than the height of the first side plate 172 and the height of the third side plate 174, so that the second side plate 173 is in contact with the second cavity wall 1242, and the third side plate 174 is in contact with the fourth cavity wall 1244. Since the second side plate 173 and the third side plate 174 are not in direct contact with any of the electrode terminal 151 and the microphone 152, they can also be guided during the insertion of the support assembly 17 into the accommodating cavity 124. Accordingly, since the height of the second side plate 173 is relatively the highest, the support assembly 17 may include a reinforcing rib 175 connecting the second side plate 173 and the bottom plate 171. The reinforcing rib 175 may be provided on opposite sides of the second side plate 173 facing the first side plate 172 and the third side plate 174.

As an example, in combination with Figures 15 to 17 and Figure 9, the hook structure 12 may include an elastic metal wire 121, a transfer housing 122, a battery housing 123 and a wire 129, and the two ends of the elastic metal wire 121 and the wire 129 may be connected to the transfer housing 122 and the battery housing 123, respectively, so that the wire 129 extends along the elastic metal wire 121 and is inserted into the transfer housing 122 and the battery housing 123. Of course, the wire 129 may also be inserted into the preset threading channel after the elastic metal wire 121 is connected to the transfer housing 122 and the battery housing 123. Among them, the battery 14 may be arranged in the battery housing 123, and may be connected to the flexible circuit board 16 through the wire 129, so that the battery 14 is also connected to the main control circuit board 13 through the flexible circuit board 16, which is conducive to simplifying the wiring structure of the earphone 10 and reducing the production cost. In other words, components such as the electrode terminal 151, the microphone 152 and the battery 14 in the hook structure 12 can be connected to the main control circuit board 13 through the flexible circuit board 16.

Furthermore, the flexible covering layer 128 may further cover at least the exposed parts of the elastic metal wire 121 and the wire 129 , and at least a part of the battery 123 , so that the wire 129 is exposed, which is beneficial to improving the appearance quality of the earphone 10 .

It should be noted that the adapter shell 122 can also be used as a part of the structure of the movement shell 111, for example, the adapter shell 122 is integrally formed with the movement inner shell 1111, and another example is that a part of the adapter shell 122 is integrally formed with the movement inner shell 1111 and the remaining part is integrally formed with the movement outer shell 1112. Among them, other parts of the hook-shaped structure 12 except the adapter shell 122, such as the end of the elastic metal wire 121 away from the battery shell 123, and another example is the battery shell 123, are fixedly connected to the movement module 11 with the adapter shell 122 at the adapter shell 122, such as plug-in fixation. Correspondingly, structural components such as the electrode terminal 151, the microphone 152 and the magnet 127 are also adjusted in position accordingly, which will not be repeated here.

Based on the above related description, the present application provides a shell component, which may include a plastic shell, a metal functional pattern and a silicone coating, wherein the metal functional pattern is arranged on the outside of the plastic shell, and the silicone coating may be covered on the side of the metal functional pattern away from the plastic shell and on the plastic shell not covered by the metal functional pattern by integral injection molding, glue connection, etc. In this way, compared with the metal functional pattern being arranged on the inner side of the plastic shell away from the silicone coating, the metal functional pattern is arranged on the outer side of the plastic shell facing the silicone coating, so that it is further away from the interference of other electronic components in the shell component, or closer to the signal trigger source outside the shell component, thereby increasing the anti-interference and sensitivity of the metal functional pattern. Among them, the structure of the plastic shell may be the same or similar to that of the movement shell 111 or its movement shell 1112, and the structure of the silicone coating may be the same or similar to that of the flexible coating 1132, which will not be repeated here.

In some embodiments, the metal functional pattern can be configured as an antenna pattern 1141 or a touch pattern 1142. The antenna pattern 1141 is configured on the outside of the plastic housing, which can increase the distance between the antenna pattern 1141 and other electronic components in the plastic housing, that is, increase the antenna clearance area, thereby increasing the anti-interference performance of the antenna pattern 1141; the touch pattern 1142 is configured on the outside of the plastic housing, which can shorten the distance between the touch pattern 1142 and an external signal trigger source (such as a user's finger), that is, shorten the touch distance, thereby increasing the sensitivity of the touch pattern 1142 to be triggered by the user.

In some embodiments, the metal functional pattern may include an antenna pattern 1141 and a touch pattern 1142. The antenna pattern 1141 may surround the periphery of the touch pattern 1142 to fully utilize the space outside the plastic housing. The antenna pattern 1141 may be U-shaped, and the touch pattern 1142 may be square.

In some embodiments, the thickness of the silicone coating may be smaller than the thickness of the plastic housing, so that the silicone coating shields and protects the metal functional pattern while further increasing the anti-interference and sensitivity of the metal functional pattern and reducing the volume of the housing assembly.

As an example, the housing assembly can be used as a core housing for accommodating the speaker 112. The relative position relationship may be the same or similar to that between the movement housing 111 and the flexible covering 1132 , and will not be described in detail here.

Furthermore, in addition to being applied to the earphones 10, the shell assembly can also be applied to other electronic devices such as smart glasses. Among them, the electronic device may include a movement module provided with a speaker 112, and may also include a main control circuit board 13, and a speaker 112 and a battery 14 respectively coupled to the main control circuit board 13; the shell assembly can be used to accommodate at least one of the electronic components such as the speaker 112, the main control circuit board 13 and the battery 14, and can also be used to support the speaker 112 in the electronic device to be located in the corresponding wearing position. It is worth noting that for electronic devices such as earphones and smart glasses based on the bone conduction principle, the speaker 112 can be adaptively adjusted to a bone conduction speaker. The basic structure of the bone conduction speaker is well known to those skilled in the art and will not be repeated here.

The present application provides a shell assembly, which may include a first shell, an electrode terminal 151, a magnet 127 and a flexible coating 128. The electrode terminal 151 and the magnet 127 are exposed on the same side of the first shell, and the hardness of the flexible coating 128 is less than that of the first shell, and covers the first shell and the magnet 127, so that the magnet 127 is not exposed and the electrode terminal 151 is exposed. In this way, compared with the magnet 127 being arranged in the first shell, the technical solution makes the magnet 127 closer to the outside world to which the exposed end of the electrode terminal 151 faces, thereby shortening the distance between the magnet 127 and the magnetic attraction structure used to cooperate with the magnet 127 in the charging device such as the charging box or the distance between the Hall sensor used to cooperate with the magnet 127, which is conducive to improving the reliability of functions such as charging and detection. Therefore, the shell assembly can be applied to both power receiving devices such as headphones 10 and smart glasses, and charging devices such as charging boxes. In other words, the electronic device can be either a power receiving device or a charging device. Among them, for the convenience of description, the first shell can be a transfer shell 122.

In some embodiments, the first shell may be provided with a through hole 1251 and a blind hole 1252, the electrode terminal 151 may be at least partially disposed in the through hole 1251, and the magnet 127 may be at least partially disposed in the blind hole 1252 and exposed through the open end of the blind hole 1252. In this way, it is not only helpful to reduce the thickness of the first shell in the area where the magnet 127 is located, but also helpful to improve the appearance quality of the first shell in the area where the magnet 127 is located. Of course, the blind hole 1252 can also be set as a through hole.

In some embodiments, a boss 126 may be provided on the outside of the first shell, the boss 126 is provided adjacent to the magnet 127 and protrudes from the first shell around the magnet 127, and the through hole 1251 further penetrates the boss 126, so that the plurality of electrode terminals 151 are exposed at the boss 126. In this way, the boss 126 makes the uneven part of the first shell due to a certain curvature become flat, so as to facilitate the arrangement of the electrode terminal 151. Among them, the boss 126 can be provided in a long strip shape, which is simple and reliable in structure.

In some embodiments, the housing assembly may include a flexible circuit board 16, and the electrode terminal 151 is connected to the flexible circuit board 16 to simplify the routing of the electrode terminal 151. The first housing may be formed with a receiving cavity 124, and at least part of the flexible circuit board 16 may be disposed in the receiving cavity 124. The through hole 1251 is connected to the receiving cavity 124, and the blind hole 1252 is not connected to the receiving cavity 124, so as to improve the waterproof and dustproof performance of the first housing.

In some embodiments, the housing assembly may include a second housing, an elastic wire 121, and a wire 129, and the two ends of the elastic wire 121 and the wire 129 may be connected to the first housing and the second housing, respectively, so that the wire 129 extends along the elastic wire 121 and is inserted into the first housing and the second housing. For ease of description, the second housing may be a battery housing 123. Further, a battery 14 is disposed in the second housing, and the battery 14 is connected to the flexible circuit board 16 through the wire 129, that is, the battery 14 and the electrode terminal 151 are both connected to the flexible circuit board 16 to simplify the wiring. Accordingly, the flexible coating 128 at least further covers the elastic wire 121 and the wire 129, so that the wire 129 is exposed.

In some embodiments, the housing assembly can be used for the earphone 10 and can include a third housing for accommodating the speaker 112 , the third housing being plugged and fixed to the first housing. For ease of description, the third housing can be the core housing 111 .

The present application provides a housing assembly, which may include a first housing, an electrode terminal 151, a microphone 152, and a support assembly 17. The first housing may be provided with a housing cavity 124, and through holes 1251 and 1253 respectively connected to the housing cavity 124, the through holes 1251 and 1253 are located on different side walls of the first housing, the electrode terminal 151 may be at least partially disposed in the through hole 1251, the microphone 152 may be disposed in the housing cavity 124, and pick up the sound outside the housing assembly through the through hole 1253. Further, the support assembly 17 may be disposed in the housing cavity 124, and may support and fix the electrode terminal 151 and the microphone 152 on the side walls corresponding to the through hole 1251 and the through hole 1253, respectively. In this way, it is not only beneficial to prevent the electrode terminal 151 and the microphone 152 from being separated from the first housing, but also beneficial to increase the waterproof and dustproof performance at the electrode terminal 151 and the microphone 152, and the structure is simple and reliable. For the convenience of description, the first shell may be the adapter shell 122 , the core shell 111 , or a shell structure in which the core shell 111 and the adapter shell 122 are integrally formed.

In some embodiments, the support assembly 17 may be independent of the first shell and inserted into the accommodating cavity 124 .

In some embodiments, the support assembly 17 may be an integrally formed structure.

In some embodiments, the housing assembly can be used for the earphone 10 and can include a third housing for accommodating the speaker 112 , and the third housing is plugged and fixed to the first housing. The first housing can be the adapter housing 122 , and the third housing can be the core housing 111 .

Furthermore, in addition to being applied to the earphone 10, the shell assembly can also be applied to other electronic devices such as smart glasses. The electronic device may include a main control circuit board 13, and a speaker 112 and a battery 14 respectively coupled to the main control circuit board 13; the shell assembly can be used to accommodate at least one of the electronic components such as the speaker 112, the main control circuit board 13 and the battery 14, and can also be used to support the speaker 112 in the electronic device to be located at a corresponding wearing position. It is worth noting that for electronic devices such as earphones and smart glasses based on the principle of bone conduction, In other words, the speaker 112 can be adaptively adjusted to be a bone conduction speaker. The basic structure of the bone conduction speaker is well known to those skilled in the art and will not be described in detail here.

As an example, in combination with Figures 19, 4 and 3, the earphone 10 may include a movement module 11 and a hook-shaped structure 12 connected to the movement module 11, and the movement module 11 may be located on the front side of the ear in the wearing state, and at least part of the hook-shaped structure 12 may be located on the back side of the ear in the wearing state. Among them, the movement module 11 may have an inner side surface IS facing the ear and an outer side surface OS away from the ear along the thickness direction X1 in the wearing state, and the thickness direction X1 is defined as the direction in which the movement module 11 approaches or moves away from the ear in the wearing state. Furthermore, in the non-wearing state, and in the thickness direction X1, the hook-shaped structure 12 first extends toward the side of the inner side surface IS away from the outer side surface OS, and then extends to the other side of the inner side surface IS toward the outer side surface OS. In such a configuration, since the hook-shaped structure 12 first extends toward the side of the inner side IS away from the outer side OS in the thickness direction X1, a part of the hook-shaped structure 12 can be staggered with the projection of the core module 11 in the direction perpendicular to the thickness direction X1, so that when the ear is worn, the upper ear root of the ear can provide less support force to the earphone 10, which is conducive to improving the comfort of the earphone 10 in wearing; and the hook-shaped structure 12 is further extended to the other side of the inner side IS toward the outer side OS in the thickness direction X1, so that another part of the hook-shaped structure 12 can overlap with the projection of the core module 11 in the direction perpendicular to the thickness direction X1, so that when the ear is worn, other physiological parts of the ear except the upper ear root can provide more support force to the earphone 10, which is conducive to improving the stability of the earphone 10 in wearing. The aforementioned support force can include the clamping force of the earphone 10 on the ear and the friction between the earphone 10 and the ear (and the surrounding head). In addition, for implementations such as when the free end of the movement module 11 extends into the concha cavity of the ear when worn, such a configuration is also beneficial for the free end of the movement module 11 to extend into the concha cavity when worn.

In some embodiments, the inner side surface IS may be configured as a plane, wherein in a non-wearing state, the plane where the inner side surface IS is located may intersect with the hook-shaped structure 12 .

In some embodiments, in the wearing state, the clamping force applied by the hook structure 12 and the movement module 11 on the ear in the thickness direction X1, for example, the earphone 10 clamps the ear from the left and right directions of the head, can be used as a part of the clamping force of the earphone 10 on the ear. The aforementioned clamping force can be measured with the aid of a dynamometer. For example: wear the earphone 10 on the above-mentioned simulator or the ear of the user, that is, in the wearing state; then fix the dynamometer (for example: Wedo WDF-10 digital push-pull dynamometer, which will not be repeated in the following text) on the side of the movement module 11 away from the ear, then pull the dynamometer and observe; when the side of the movement module 11 facing the ear of the user is just separated from the skin of the ear, read the tension displayed on the dynamometer, and the tension can be simply regarded as the clamping force.

As an example, in combination with FIG. 19 and FIG. 9 , the hook-shaped structure 12 may include an elastic wire 121 connected to the movement module 11, at least part of the elastic wire 121 may be located at the rear side of the ear in the wearing state, and the plane where the elastic wire 121 is located may intersect with the inner side surface IS in the non-wearing state. Among them, the elastic wire 121 may undergo a certain elastic deformation relative to the movement module 11 in the thickness direction X1, so that it can provide a corresponding clamping force. In this way, a part of the hook-shaped structure 12 is allowed to overlap with the projection of the movement module 11 in a direction perpendicular to the thickness direction X1, and then in the wearing state, the elastic wire 121 clamps the ear together with the movement module 11 and adheres to the ear due to the elastic deformation. It is worth noting that when the hook-shaped structure 12 includes a coating such as a flexible coating 128, the structural components such as the elastic wire 121, the adapter shell 122 and the cover shell 1231 shown in FIG. 9 are not visible in FIG. 19. Of course, in some embodiments, the hook-shaped structure 12 may not include the elastic metal wire 121. For example, a hard plastic part may be used instead of the elastic metal wire 121, and the deformation ability of the hook-shaped structure 12 in various directions may be designed according to the material, length, cross-sectional dimensions, etc. of the hard plastic part, which will not be repeated in the following text.

In some embodiments, in the non-wearing state, there may be an angle between the plane where the elastic metal wire 121 is located and the inner side surface IS, such as the angle θ formed by the median line ML and the inner side surface IS in FIG. 19 , and the aforementioned angle may be between 15° and 30°. If the aforementioned angle is too small, the earphone 10 may be unstable to wear due to insufficient clamping force on the ear; if the aforementioned angle is too large, the earphone 10 may be uncomfortable to wear due to excessive clamping force on the ear. Furthermore, the aforementioned median line may refer to the axis of the elastic metal wire 121.

In some embodiments, the diameter of the elastic metal wire 121 may be between 0.6 mm and 0.8 mm. If the diameter is too small, it is easy for the elastic metal wire 121 to provide insufficient clamping force and insufficient structural strength; if the diameter is too large, it is easy for the elastic metal wire 121 to be difficult to deform elastically and provide excessive clamping force.

As an example, in combination with Figures 19, 9 and 7, the hook-shaped structure 12 may include a transfer shell 122 connecting the elastic metal wire 121 and the movement module 11, and at least part of the transfer shell 122 may be located on the front side of the ear in the wearing state, and the transfer shell 122 extends toward the inner side surface IS away from the outer side surface OS in the thickness direction X1. This arrangement allows a portion of the hook-shaped structure 12 to be offset from the projection of the movement module 11 in a direction perpendicular to the thickness direction X1, so that in the wearing state, the upper ear root of the ear can provide less support force to the earphone 10. It is worth noting that when the hook-shaped structure 12 includes a coating such as a flexible coating 128, the transfer shell 122 shown in Figure 9 is not visible in Figure 19.

As an example, in conjunction with FIG. 19 and FIG. 9 , the hook-shaped structure 12 may include a battery housing 123 connected to one end of the elastic metal wire 121 away from the movement module 11, and a battery 14 coupled to the movement module 11 is disposed in the battery housing 123. In the non-wearing state, at least part of the battery housing 123 may be located between the inner side IS and the outer side OS in the thickness direction X1. The battery housing 123 may contact the back of the ear and/or the head in the wearing state.

As an example, in combination with FIG. 19 and FIG. 2, the core module 11 may have a length direction Y1 and a width direction Z1 that are perpendicular to the thickness direction X1 and orthogonal to each other, and the length of the core module 11 in the length direction Y1 may be greater than the width of the core module 11 in the width direction Z1. Among them, the core module 11 may have an upper side US facing away from the external auditory canal of the ear along the width direction Z1 in the wearing state and a lower side LS facing the external auditory canal, and a rear side RS connecting the upper side US and the lower side LS, and the rear side RS is located at one end of the length direction Y1 facing the back of the head in the wearing state. Further, the median line ML of the orthographic projection of the hook-shaped structure 12 on a reference plane perpendicular to the width direction Z1 (such as the XY plane in FIG. 19) and the orthographic projection of the inner side IS on the same reference plane can form a first intersection O1, and the median line ML and the orthographic projection of the rear side RS on the same reference plane can form a second intersection O2. The center line ML can pass through the geometric center of the cross section of any point on the hook-shaped structure 12, for example, the center line ML is the axis of the elastic metal wire 121. In this way, when the positive projection of the movement module 11 on the reference plane perpendicular to the thickness direction X1 is a non-circular structure such as a rounded rectangle, the positive projection of the hook-shaped structure 12 along the width direction Z1 falls on the upper side surface US. It is worth noting that: since the movement module 11 and the hook-shaped structure 12 partially overlap in the width direction, the dotted lines in FIG. 19 illustrate the parts of the inner side surface IS and the rear side surface RS that are blocked by the hook-shaped structure 12.

In some embodiments, the first intersection O1 and the second intersection O2 are connected to form a first reference line segment O1O2, and the first reference line segment O1O2 may have a first component and a second component in the length direction Y1 and the thickness direction Z, respectively. The ratio of the first component to the length of the movement module 11 in the length direction Y1 may be between 0.12 and 0.19, and the ratio of the second component to the thickness of the movement module 11 in the thickness direction X1 may be between 0.1 and 0.16. This arrangement allows the hook structure 12 to have a suitable angle with the inner side surface IS, such as an angle θ between 15° and 30°, thereby allowing the earphone 10 to apply a suitable clamping force to the ear.

In some embodiments, the farthest point O3 of the median line ML in the thickness direction X1, which is farthest from the inner side surface IS, and the first intersection O1 are connected to form a second reference line segment O1O3, and the second reference line segment O1O3 may have a third component and a fourth component in the length direction Y1 and the thickness direction X1, respectively. The ratio between the third component and the length of the movement module 11 in the length direction Y1 may be between 0.43 and 0.66, and the ratio between the fourth component and the thickness of the movement module 11 in the thickness direction X1 may be between 0.26 and 0.4. This arrangement allows the hook structure 12 to have a suitable angle with the inner side surface IS, such as an angle θ between 15° and 30°, thereby allowing the earphone 10 to apply a suitable clamping force to the ear.

As an example, in conjunction with FIG3 , the earphone 10 may include a movement module 11 and a hook-shaped structure 12 connected to the movement module 11, the movement module 11 may be located at the front side of the ear in the wearing state, and the free end FE of the movement module 11 that is not connected to the hook-shaped structure 12 may extend into the concha cavity of the ear in the wearing state, and at least part of the hook-shaped structure 12 may be located at the back side of the ear in the wearing state. The movement module 11 and the hook-shaped structure 12 may jointly clamp the ear area from the front and back sides of the ear area corresponding to the concha cavity with a certain clamping force. If the aforementioned clamping force is too small, the earphone 10 may be unstable when worn; if the aforementioned clamping force is too large, the earphone 10 may be uncomfortable to wear.

In some embodiments, in the wearing state, the clamping force applied to the ear by the hook structure 12 and the movement module 11 in a direction perpendicular to the thickness direction X1, for example, the earphone 10 clamps the ear from the front-to-back direction of the head, can be used as a part of the clamping force of the earphone 10 on the ear. The aforementioned clamping force can be measured with the aid of a dynamometer. For example: wear the earphone 10 on the above-mentioned simulator or the ear of the user, that is, in the wearing state; then fix the dynamometer to the end of the hook structure 12 away from the movement module 11, then pull the dynamometer and observe; when the side of the hook structure 12 facing the ear of the user is just separated from the skin of the ear, read the tension displayed on the dynamometer, and the tension can be simply regarded as the clamping force.

In some embodiments, when not worn, the deformation capability of the hook structure 12 relative to the core module 11 can be reflected by a corresponding measurement method, thereby characterizing the clamping force that the earphone 10 can exert on the ear. The aforementioned measurement method is exemplarily described below.

As an example, in combination with FIG. 20 and FIG. 4 , the orthographic projections of the hook structure 12 and the core module 11 on a first reference plane perpendicular to the thickness direction X1 (e.g., the YZ plane in FIG. 20 ) may not overlap, and the thickness direction X1 is defined as the direction in which the core module 11 approaches or moves away from the ear in the wearing state, so as to allow the earphone 10 to clamp the ear from the front and rear directions of the above-mentioned ear region. Among them, there may be a first reference line segment RL1 with the shortest length between the orthographic projection of the hook structure 12 and the orthographic projection of the core module 11. It is worth noting that the orthographic projection of the core module 11 on the reference plane perpendicular to the thickness direction X1 may be a rounded rectangle or an ellipse, or a circle or a rounded square. Further, after the core module 11 is fixed, the hook structure 12 may have a tensile force between 0.6N and 8N after being pulled away from the core module 11 by a distance of 5mm to 10mm at the measurement fixed position P1 along a direction parallel to the first reference line segment RL1 and away from the core module 11 (e.g., as shown by arrow F in FIG. 20 ). The measurement fixed position P1 can be defined as 16mm to 27mm away from the free end of the hook-like structure 12 not connected to the movement module 11 (for example, as shown by arrow L in FIG. 9 , which will not be described in detail hereinafter) in the length direction of the hook-like structure 12 (for example, as shown by arrow L in FIG. 9 , which will not be described in detail hereinafter). Preferably, after the movement module 11 is fixed, the hook-like structure 12 at the measurement fixed position P1 can have a pulling force between 0.8N and 5N after being pulled away from the movement module 11 by a distance of 5mm to 10mm in a direction parallel to the first reference line segment RL1 and away from the movement module 11.

Further, after the movement module 11 is fixed, the hook structure 12 can have a pulling force between 0.1N and 1.96N after being pulled away from the movement module 11 by a distance of 1mm to 5mm in a direction parallel to the first reference line segment RL1 and away from the movement module 11 at the measurement fixed position P1.

In some embodiments, in a non-wearing state, the earphone 10 can be fixed on a measuring platform, for example, the movement module 11 is fixed on a fixture of the measuring platform. At this time, the first reference line segment RL1 can be parallel to the horizontal plane, and the hook structure 12 can be in a suspended state. Based on this, the dynamometer 20 can be fixed on the hook structure 12, for example, the hook of the dynamometer 20 can be hooked or sleeved on the measurement fixed position P1, and the measurement fixed position P1 is therefore shown as a straight line segment in Figure 20. Subsequently, the measurement personnel can manually and slowly pull the dynamometer 20, for example, so that the displacement of the dynamometer 20 is d, and the hook structure 12 is also correspondingly deformed from the initial position L1 to the measurement position L2, and the tension F under this displacement is recorded. Based on this, at the same measurement fixed position P1, through multiple measurements, the dynamometer 20 has different displacements, and the tension F under the corresponding displacement is recorded, thereby reflecting the deformation ability of the hook structure 12 relative to the core module 11, and further representing the clamping force that the earphone 10 can apply to the ear. Of course, the dynamometer 20 can also be used as part of the measurement platform, and the measurement platform makes the hook structure 12 away from the core module 11 after the earphone 10 is fixed, that is, automatic measurement.

In some embodiments, when not in wear, the movement module 11 can be pressed on the edge of the table, and the hook structure 12 can be kept suspended as much as possible. Similarly, the hook of the dynamometer 20 can be hooked or sleeved on the measurement fixed position P1, and the measurement is performed as described above, which will not be repeated here.

The following table describes by way of example the corresponding relationship between the tension F and the pull-out distance d at different measurement fixed positions P1. The unit of the tension F is N, and the unit of the pull-out distance d is mm. Further, in the following table, #1, #2, and #3 respectively represent the measurement fixed position P1 at a distance of 16 mm, 21.5 mm, and 27 mm from the free end of the hook structure 12 that is not connected to the movement module 11 in the length direction of the hook structure 12. It is worth noting that: in order to reduce the measurement error, each tension F can be averaged after multiple measurements, for example, the average value is taken after three measurements.

In some embodiments, the length of the first reference line segment RL1 may be between 2 mm and 3 mm. If the length of the first reference line segment RL1 is too small, the earphone 10 may be uncomfortable to wear; if the length of the first reference line segment RL1 is too large, the earphone 10 may be unstable to wear.

In some embodiments, the distance between the measurement fixing position P1 and the first reference line segment RL1 is less than or equal to 1 mm, so as to allow the measurement fixing position P1 to be as close as possible to the preset position on the hook structure 12 that contacts the ear.

In some embodiments, the core module 11 may have a length direction Y1 and a width direction Z1 that are perpendicular to the thickness direction X1 and orthogonal to each other, and the length of the core module 11 in the length direction Y1 may be greater than the width of the core module 11 in the width direction Z1. In particular, in conjunction with FIG. 21 and FIG. 20, the orthographic projection of the free end FE of the core module 11 on a second reference plane perpendicular to the length direction Y1 (e.g., the XZ plane in FIG. 21) has a geometric center GC, for example, the geometric center is the center of the circumscribed circle of the aforementioned orthographic projection, and the spacing between the measurement fixed position P1 and the extension line passing through the geometric center GC and parallel to the first reference line segment RL1 may be less than or equal to 1 mm. This arrangement allows the measurement fixed position P1 to be as close as possible to the preset position on the hook structure 12 that contacts the ear. For example: the movement module 11 has an inner side surface IS facing the ear and an outer side surface OS away from the ear along the thickness direction X1 when worn, as well as an upper side surface US of the external auditory canal away from the ear and a lower side surface LS facing the external auditory canal along the width direction Z1, and the inner side surface IS, the outer side surface OS, the upper side surface US and the lower side surface LS form a geometric figure on the second reference plane, and the geometric center GC is defined as the center of the circumscribed circle of the aforementioned geometric figure.

As an example, in conjunction with Figure 20, the movement module 11 may have a length direction Y1 and a width direction Z1 that are perpendicular to the thickness direction X1 and orthogonal to each other, and the length of the movement module 11 in the length direction Y1 may be greater than the width of the movement module 11 in the width direction Z1. Among them, the movement module 11 may have an upper side surface US facing away from the external auditory canal of the ear along the width direction Z1 in the wearing state and a lower side surface LS facing the external auditory canal. Furthermore, there may be a second reference line segment RL2 parallel to the width direction Z1 and with the longest length between the orthographic projection of the hook-shaped structure 12 and the orthographic projection of the movement module 11, and the length of the second reference line segment RL2 may be between 13 mm and 20 mm. If the length of the second reference line segment RL2 is too short, it is easy to cause the free end FE of the movement module 11 to be unable to extend into the concha cavity, and the sound outlet hole 111a on the movement module 11 is too far away from the external auditory canal; if the length of the second reference line segment RL2 is too long, it is also easy to cause the free end FE to be unable to extend into the concha cavity, and the external auditory canal is excessively blocked by the movement module 11. In other words, such a setting allows the free end FE of the movement module 11 to extend into the concha cavity, and the sound outlet hole 111a on the movement module 11 has a suitable distance from the external auditory canal, so that the user can hear more sound waves generated by the movement module 11 when the external auditory canal is not blocked.

Further, the direction of the first reference line segment RL1 may be parallel to the length direction Y1. In other words, when the orthographic projection of the core module 11 on the reference plane perpendicular to the thickness direction X1 is set to a rounded rectangle, the distance between the orthographic projection of the hook structure 12 and the orthographic projection of the core module 11 in the length direction Y1 is the smallest.

In some embodiments, the point P3 where the second reference line segment RL2 intersects with the orthographic projection of the movement module 11 is used as the starting point of the second reference line segment RL2, and the point P4 where the second reference line segment RL2 intersects with the orthographic projection of the hook-shaped structure 12 is used as the end point of the second reference line segment RL2. Among them, the third reference line segment RL3 passing through 1/4 of the second reference line segment RL2 and parallel to the length direction Y1 intersects with the hook-shaped structure 12 at the first intersection point P5 and the second intersection point P6. The first intersection point P5 is closer to the movement module than the second intersection point P6 in the length direction of the hook-shaped structure 12. Module 11. Further, the distance between the first intersection point P5 and the starting point of the second reference line segment RL2 can be between 9 mm and 15 mm, and the distance between the second intersection point P6 and the starting point of the second reference line segment RL2 can be between 12 mm and 19 mm. In this way, when the free end FE of the core module 11 extends into the concha cavity and the sound outlet hole 111a on the core module 11 has a suitable distance from the external auditory canal, the hook structure 12 and the core module 11 apply a suitable clamping force to the ear.

As an example, in combination with FIG. 20 and FIG. 9 , the hook-shaped structure 12 may include an elastic wire 121 connected to the movement module 11 and a battery housing 123 connected to one end of the elastic wire 121 away from the movement module 11, and a battery 14 coupled to the movement module 11 is arranged in the battery housing 123. Among them, the extension line of the first reference line segment RL1 can pass through the battery housing 123. In this way, since the part of the hook-shaped structure 12 corresponding to the battery housing 123 is thicker than the part of the hook-shaped structure 12 corresponding to the elastic wire 121, the hook-shaped structure 12 clamps the ear together with the movement module 11 through the battery housing 123, which is conducive to improving the comfort of the earphone 10 in wearing. Among them, the elastic wire 121 can undergo a certain elastic deformation relative to the movement module 11 in a direction perpendicular to the thickness direction X1, so that it can provide a corresponding clamping force. It is worth noting that when the hook structure 12 includes a coating such as the flexible coating 128 , structural components such as the elastic wire 121 , the transition housing 122 , and the cover shell 1231 shown in FIG. 9 are not visible in FIG. 20 .

In some embodiments, the battery housing 123 may include a cover shell 1231 connected to the elastic metal wire 121 and a battery compartment 1232 connected to the cover shell 1231, and the battery compartment 1232 and the cover shell 1231 cooperate to form a cavity structure for accommodating the battery 14. Among them, the hook structure 12 may include a flexible coating 128 that at least covers the elastic metal wire 121 and the cover shell 1231, and the hardness of the flexible coating 128 may be less than the hardness of the cover shell 1231. Further, the extension line of the first reference line segment RL1 may pass through the section where the flexible coating 128 overlaps with the cover shell 1231. In this way, the hook structure 12 further clamps the ear together with the movement module 11 through the flexible coating 128 on the cover shell 1231, which is conducive to further improving the wearing comfort of the earphone 10.

In some embodiments, one end of the battery compartment 1232 in the length direction of the hook-shaped structure 12 may be open, and the cover shell 1231 is partially embedded in the open end of the battery compartment 1232. The area of the outer surface of the cover shell 1231 on the reference cross section perpendicular to the length direction of the hook-shaped structure 12 may be smaller than the area of the outer surface of the battery compartment 1232 on the reference cross section perpendicular to the length direction of the hook-shaped structure 12, that is, the outer diameter of the cover shell 1231 may be smaller than the outer diameter of the battery compartment 1232. Further, the flexible cover layer 128 may not cover the battery compartment 1232, and the outer surface of the flexible cover layer 128 and the outer surface of the battery compartment 1232 have a smooth transition to improve the appearance quality of the earphone 10 when not worn. At this time, the measurement fixed position P1 may be located at the junction between the flexible cover layer 128 and the battery compartment 1232. This arrangement allows the measurement fixed position P1 to be as close as possible to the preset position on the hook-shaped structure 12 that contacts the ear.

As an example, in conjunction with FIG. 3 and FIG. 9 , the earphone 10 may include a movement module 11 and a hook-shaped structure 12 connected to the movement module 11, and the hook-shaped structure 12 may include a battery housing 123, and a battery 14 coupled to the movement module 11 is arranged in the battery housing 123. Among them, the movement module 11 can be located at the front side of the ear in the wearing state, and the free end FE of the movement module 11 that is not connected to the hook-shaped structure 12 can extend into the concha cavity of the ear in the wearing state, and at least part of the hook-shaped structure 12 can be located at the back side of the ear in the wearing state. Further, the movement module 11 and the battery housing 123 can clamp the ear area from the front and back sides of the ear area corresponding to the concha cavity, so as to allow the earphone 10 to be stably and comfortably worn on the ear. Among them, the battery housing 123 can also contact the head skin outside the ear, which is conducive to increasing the contact area of the battery housing 123 and the user's skin, so that when the user wears the earphone 10 stably and comfortably, he can be aware that he is wearing the earphone 10, providing the user with a sense of stability when wearing, and improving the user's wearing experience. In addition, since the contact area between the earphone 10 and the user's skin is increased, it is also helpful to reduce the risk of the earphone 10 slipping off the ear when the user lowers, raises, or shakes his head.

In some embodiments, the maximum area of the outer surface of the battery housing 123 on a reference cross section perpendicular to the length direction of the hook structure 12 may be between 60 mm ² and 100 mm ^2. If the aforementioned maximum area is too small, it is easy for the battery housing 123 to be difficult to contact the head skin outside the ear, and the capacity of the battery 14 is insufficient to meet the endurance requirements of the earphone 10; if the aforementioned maximum area is too large, it is easy for the battery housing 123 to be seen too much from the front side of the ear, thereby affecting the appearance quality of the earphone 10 when worn.

As an example, in conjunction with FIG9 , the battery housing 123 may include a cover shell 1231 and a battery compartment 1232 connected to the cover shell 1231. One end of the battery compartment 1232 in the length direction of the hook-shaped structure 12 may be open, and the cover shell 1231 may be partially embedded in the open end of the battery compartment 1232 to cooperate to form a cavity structure for accommodating the battery 14. Among them, the area of the outer surface of the cover shell 1231 on the reference cross section perpendicular to the length direction of the hook-shaped structure 12 gradually increases along the length direction of the hook-shaped structure 12 and close to the positive direction of the battery compartment 1232, that is, the hook-shaped structure 12 may be set to a tapered structure at the cover shell 1231, which is conducive to alleviating the outer diameter difference between the battery compartment 1232 and other parts of the hook-shaped structure 12 (such as the elastic metal wire 121), so that the hook-shaped structure 12 is smoother and more symmetrical in overall appearance. Furthermore, the cover 1231 can contact the ear region to clamp the ear with the movement module 11, and the battery compartment 1232 can contact the head skin outside the ear to increase the contact area between the battery housing 123 and the user's skin. In other words, different parts of the battery housing 123 contact the skin at different physiological positions.

In some embodiments, the contact area between the cover shell 1231 and the head skin around the ear can be smaller than the contact area between the battery compartment 1232 and the head skin around the ear, so that when the cover shell 1231 and the movement module 11 clamp the ear, the cover shell 1231 does not need to take into account the contact between the battery housing 123 and the head skin around the ear. In other words, different parts of the battery housing 123 can have different design intentions. Therefore, the cover shell 1231 may not be in contact with the head skin around the ear.

In some embodiments, the hook structure 12 may include an elastic wire 121 connecting the movement module 11 and the cover shell 1231, and a flexible coating 128 covering at least the elastic wire 121 and the cover shell 1231. The cover shell 1231 may contact the ear region through the flexible coating 128 to improve the wearing comfort of the earphone 10. The flexible coating 128 may not cover the battery compartment 1232, which helps to reduce the risk of the hook structure 12 being too thick at the battery compartment 1232 and being exposed too much from the front side of the ear, thereby improving the appearance quality of the earphone 10 when worn. Furthermore, the outer surface of the flexible coating 128 may smoothly transition with the outer surface of the battery compartment 1232 to improve the appearance quality of the earphone 10 when not worn.

In some embodiments, the movement module 11 may have an inner side surface IS facing the ear and an outer side surface OS away from the ear along the thickness direction X1 in the wearing state, and the thickness direction X1 is defined as the direction in which the movement module 11 approaches or moves away from the ear in the wearing state. Among them, in the non-wearing state, at least part of the battery housing 123 is located between the inner side surface IS and the outer side surface OS in the thickness direction X1, so that the clamping force of the earphone 10 on the ear is mainly manifested as positive pressure, which is conducive to improving the wearing comfort of the earphone 10. Furthermore, the movement module 11 may have a length direction Y1 and a width direction Z1 that are perpendicular to the thickness direction X1 and orthogonal to each other, and the length of the movement module 11 in the length direction Y1 may be greater than the width of the movement module 11 in the width direction Z1. Among them, the orthographic projection of the cover shell 1231 along the length direction Y1 and the orthographic projection of the movement module 11 along the length direction Y1 can at least partially overlap, and the orthographic projection of the battery compartment 1232 along the length direction Y1 and the orthographic projection of the movement module 11 along the length direction Y1 can at least partially not overlap, so as to allow the hook structure 12 to mainly clamp the ear together with the movement module 11 at the cover shell 1231.

As an example, in combination with Figures 22, 9 and 3, the earphone 10 may include a movement module 11 and a hook-shaped structure 12 connected to the movement module 11, the movement module 11 may be located on the front side of the ear in the wearing state, and at least part of the hook-shaped structure 12 may be located on the back side of the ear in the wearing state. Among them, the orthographic projections of the hook-shaped structure 12 and the movement module 11 on a reference plane perpendicular to the thickness direction X1 (such as the YZ plane in Figure 22) may not overlap, and the thickness direction X1 is defined as the direction in which the movement module 11 approaches or moves away from the ear in the wearing state. Further, the hook-shaped structure 12 may include a battery housing 123 and a flexible covering 128, the battery housing 123 is provided with a battery 14 coupled to the movement module 11, and may include a cover shell 1231 and a battery compartment 1232 connected to the cover shell 1231, and the flexible covering 128 may cover the cover shell 1231. Among them, there may be a first reference line segment RL1 with the shortest length between the orthographic projection of the hook-shaped structure 12 and the orthographic projection of the movement module 11, and the point where the first reference line segment RL1 intersects with the orthographic projection of the hook-shaped structure 12 may be located in the section where the flexible coating 128 and the cover shell 1231 overlap. In other words, the hook-shaped structure 12 may contact the back side of the ear through the cover shell 1231 and the flexible coating 128 thereon, and then clamp the ear together with the movement module 11, which is conducive to improving the wearing comfort of the earphone 10. It is worth noting that the orthographic projection of the movement module 11 on the reference plane perpendicular to the thickness direction X1 may be a rounded rectangle or an ellipse, or a circle or a rounded square.

In some embodiments, when worn, the clamping force applied by the hook structure 12 and the movement module 11 on the ear in the thickness direction X1, for example, the earphone 10 clamps the ear from the left and right directions of the head, can serve as part of the clamping force of the earphone 10 on the ear.

In some embodiments, when worn, the hook structure 12 and the movement module 11 apply a clamping force to the ear in a direction perpendicular to the thickness direction X1, for example, the earphone 10 clamps the ear from the front-to-back direction of the head, which can serve as part of the clamping force of the earphone 10 on the ear.

In some embodiments, in the non-wearing state, the earphone 10 may have a second reference line RL2 parallel to the first reference line segment RL1 on a reference plane perpendicular to the thickness direction X1 (e.g., the YZ plane in FIG. 22 ), and the second reference line RL2 intersects with the orthographic projection of the battery housing 123 and is farthest from the first reference line segment RL1. Based on this, the edge of the orthographic projection of the hook-shaped structure 12 on the side of the movement module 11 may have a maximum distance to the second reference line RL2, such as the length of the third reference line segment RL3 in FIG. 22 , and the aforementioned maximum distance may be between 34 mm and 52 mm. Among them, if the aforementioned maximum distance is too small, it is easy to cause the capacity of the battery 14 to be insufficient and it is difficult to meet the endurance requirements of the earphone 10; if the aforementioned maximum distance is too large, it is not only easy to cause the hook-shaped structure 12 to be seen too much from the front side of the ear due to the battery housing 123 being too long, thereby affecting the appearance quality of the earphone 10 in the wearing state, but also easy to cause the hook-shaped structure 12 to interfere with the earlobe or earrings worn by the user on the ear, especially for female users, thereby affecting the user's use preference.

In some embodiments, in the wearing state, the distance between the free end of the hook structure 12 that is not connected to the movement module 11 and the upper ear root of the ear on the vertical axis of the human body (such as shown by V1 in Figure 3) can be between 37mm and 56mm. Among them, if the aforementioned distance is too small, it is easy to cause the capacity of the battery 14 to be insufficient and it is difficult to meet the battery life requirements of the headset 10; if the aforementioned distance is too large, it is not only easy to cause the hook structure 12 to be seen too much from the front side of the ear due to the battery shell 123 being too long, thereby affecting the appearance quality of the headset 10 in the wearing state, but also easy to cause the hook structure 12 to interfere with the earlobe or the earrings near the ear worn by the user, especially for female users, thereby affecting the user's use preference.

In some embodiments, when the headset is worn, the distance between the free end of the hook structure 12 that is not connected to the movement module 11 and the edge of the earlobe on the vertical axis of the human body (for example, as shown by V2 in FIG. 3 ) can be less than or equal to 10 mm. If the aforementioned distance is too large, the capacity of the battery 14 is insufficient and it is difficult to meet the battery life requirements of the headset 10.

In some embodiments, the length of the battery compartment 1232 in the length direction of the hook structure 12 may be between 10 mm and 20 mm. This configuration is provided to take into account both the battery life of the headset 10 and its appearance quality when worn.

In some embodiments, the battery compartment 1232 may be provided in a hollow cylindrical shape, and the outer surface of the battery compartment 1232 is perpendicular to the hook. The area of the reference cross section of the structure 12 in the length direction may be between 60 mm ² and 100 mm ^2. If the aforementioned area is too small, the capacity of the battery 14 may be insufficient and it may be difficult to meet the endurance requirement of the earphone 10; if the aforementioned area is too large, the battery housing 123 may be seen too much from the front side of the ear, thereby affecting the appearance quality of the earphone 10 when worn.

As an example, in combination with FIG. 3 and FIG. 1 , the earphone 10 may include a movement module 11 and a hook-shaped structure 12 connected to the movement module 11, the movement module 11 may be located at the front side of the ear in the wearing state, and the free end FE of the movement module 11 not connected to the hook-shaped structure 12 may extend into the concha cavity of the ear in the wearing state, and at least part of the hook-shaped structure 12 may be located at the back side of the ear in the wearing state. Among them, the movement module 11 may have a thickness direction X1, a length direction Y1 and a width direction Z1 that are orthogonal to each other, the thickness direction X1 is defined as the direction in which the movement module 11 approaches or moves away from the ear in the wearing state, and the length of the movement module 11 in the length direction Y1 may be greater than the width of the movement module 11 in the width direction Z1. Further, the length of the movement module 11 in the length direction Y1 (such as shown in L in FIG. 3 ) may be between 22 mm and 35 mm. If the length of the movement module 11 is too small, it is easy for the free end FE of the movement module 11 to be difficult to extend into the concha cavity, and it is also difficult to further clamp the ear with the hook structure 12; if the length of the movement module 11 is too large, it is also easy for the free end FE of the movement module 11 to be difficult to extend into the concha cavity, and even affect the wearing of the earphone 10. Further, the hook structure 12 can have a transition portion 12a connected to the movement module 11, and the transition portion 12a can be located at the front side of the ear in the wearing state, and the area of the outer surface of the transition portion 12a on the reference cross section perpendicular to the length direction of the hook structure 12 can be gradually reduced in the positive direction along the length direction of the hook structure 12 and away from the movement module 11, that is, the transition portion 12a can be set as a tapered structure, so that the earphone 10 is smoother and more symmetrical in overall appearance. Based on this, in the wearing state and observed along the direction of the human coronal axis, compared with the free end FE of the movement module 11 that is not connected to the hook structure 12, the connection end CE of the movement module 11 connected to the hook structure 12 is closer to the top of the user's head, and the angle between the length direction Y1 and the direction of the human sagittal axis (for example, as shown by θ in Figure 3) can be between 15° and 60°, so that the transition portion 12a passes over the recessed area between the helix and the tragus of the ear as much as possible, which is conducive to reducing the risk of the transition portion 12a interfering too much with the user's skin, thereby improving the wearing comfort of the headset 10.

In some embodiments, such as FIG7 , the hook structure 12 and the core module 11 can be plugged and fixed in a direction perpendicular to the width direction Z1. Based on this, the length of the core module 11 in the length direction Y1 can be measured after the core module 11 and the hook structure 12 are disassembled.

In some embodiments, the width of the core module 11 in the width direction Z1 (such as shown by W in FIG. 3 ) may be between 10 mm and 16 mm. If the width of the core module 11 is too small, it is easy to cause discomfort when wearing due to too small a contact area between the core module 11 and the ear; if the width of the core module 11 is too large, it is easy to cause the core module 11 to block the external auditory canal too much.

As an example, in conjunction with FIG. 23, the orthographic projection of the hook-shaped structure 12 on a reference plane perpendicular to the thickness direction X1 (e.g., the YZ plane in FIG. 23) toward the edge of the movement module 11 on one side and the orthographic projection of the movement module 11 on the same reference plane has a first reference line segment RL1 parallel to the width direction Z1 and the longest length. Among them, the point P1 where the first reference line segment RL1 intersects with the orthographic projection of the movement module 11 is used as the starting point of the first reference line segment RL1, and the point P2 where the first reference line segment RL1 intersects with the orthographic projection of the hook-shaped structure 12 is used as the end point of the first reference line segment RL1. Further, the orthographic projection of the transition portion 12a may have an inner edge IE and an outer edge OE that are respectively continuous arc transitions, and the outer edge OE is farther away from the first reference line segment RL1 than the inner edge IE in the length direction Y1. Among them, the overall curvature of the inner edge IE may be greater than the overall curvature of the outer edge OE, so that the transition portion 12a is smoother and more symmetrical in overall appearance.

In some embodiments, the orthographic projection of the transition portion 12a may have a second reference line segment RL2, a third reference line segment RL3, a fourth reference line segment RL4, and a fifth reference line segment RL5 that are parallel to the length direction Y1 and spaced in sequence. Among them, the second reference line segment RL2, the third reference line segment RL3, the fourth reference line segment RL4, and the fifth reference line segment RL5 are successively farther and farther away from the orthographic projection of the movement module 11 in the width direction Z1. Further, the starting point and the end point of the second reference line segment RL2, the third reference line segment RL3, the fourth reference line segment RL4, and the fifth reference line segment RL5 fall on the inner edge IE and the outer edge OE, respectively. Among them, the length of the second reference line segment RL2 can be between 5mm and 8mm, and the extension line of the second reference line segment RL2 passes through 1/8 of the first reference line segment RL1; the length of the third reference line segment RL3 can be between 4mm and 6.3mm, and the extension line of the third reference line segment RL3 passes through 1/4 of the first reference line segment RL1; the length of the fourth reference line segment RL4 can be between 3.5mm and 5.4mm, and the extension line of the fourth reference line segment RL4 passes through 3/8 of the first reference line segment RL1; the length of the fifth reference line segment RL5 can be between 3mm and 5mm, and the extension line of the fifth reference line segment RL5 passes through 1/2 of the first reference line segment RL1.

In some embodiments, the length of the first reference line segment RL1 may be between 13 mm and 20 mm. If the length of the first reference line segment RL1 is too small, it is easy to cause the free end FE of the movement module 11 to be unable to extend into the concha cavity, and the sound outlet hole 111a on the movement module 11 is too far away from the external auditory canal; if the length of the first reference line segment RL1 is too large, it is also easy to cause the free end FE to be unable to extend into the concha cavity, and the external auditory canal is excessively blocked by the movement module 11. In other words, such a setting allows the free end FE of the movement module 11 to extend into the concha cavity, and the sound outlet hole 111a on the movement module 11 has a suitable distance from the external auditory canal, so that the user can hear more sound waves generated by the movement module 11 when the external auditory canal is not blocked.

In some embodiments, the hook structure 12 may include a transfer housing 122 connected to the movement module 11 and an elastic metal wire 121 connected to the transfer housing 122. At least part of the transfer housing 122 may be located on the front side of the ear in the wearing state. The wire 121 can be located at the rear side of the ear in the worn state. In other words, the portion of the adapter shell 122 located at the front side of the ear in the worn state can serve as a portion of the transition portion 12a or the entire transition portion 12a. Among them, the movement module 11 can have an inner side surface IS facing the ear along the thickness direction X1 and an outer side surface OS away from the ear in the worn state, and the area of the outer surface of the adapter shell 122 on a reference cross section perpendicular to the length direction of the hook structure 12 can gradually decrease in the positive direction along the length direction of the hook structure 12 and away from the movement module 11, so as to allow the transition portion 12a to be set as a tapered structure. Furthermore, the adapter shell 122 can extend toward the side of the inner side surface IS away from the outer side surface OS in the thickness direction X1, so as to allow a portion of the hook-shaped structure 12 to be staggered with the projection of the movement module 11 in the direction perpendicular to the thickness direction X1, and thus in the worn state, the upper ear root of the ear can provide less supporting force to the earphone 10; the plane where the elastic metal wire 121 is located and the inner side surface IS can cross in the non-worn state, so as to allow a portion of the hook-shaped structure 12 to overlap with the projection of the movement module 11 in the direction perpendicular to the thickness direction X1, and thus in the worn state, the elastic metal wire 121 clamps the ear and adheres to the ear together with the movement module 11 due to elastic deformation.

As an example, in combination with FIG. 7 and FIG. 3 , the earphone 10 may include a movement module 11 and a hook-shaped structure 12 connected to the movement module 11, the movement module 11 may be located at the front side of the ear in the wearing state, and the free end FE of the movement module 11 that is not connected to the hook-shaped structure 12 may extend into the concha cavity of the ear in the wearing state, and at least part of the hook-shaped structure 12 may be located at the back side of the ear in the wearing state. The movement module 11 may have a first inner side surface IS1 facing the ear along the thickness direction X1 in the wearing state and an outer side surface OS away from the ear, the thickness direction X1 being defined as the direction in which the movement module 11 approaches or moves away from the ear in the wearing state, the hook-shaped structure 12 may have a transition portion 12a connected to the movement module 11, the transition portion 12a may be located at the front side of the ear in the wearing state, and may have a second inner side surface IS2 facing the ear along the thickness direction X1 in the wearing state. Furthermore, the first inner side surface IS1 can cover at least a part of the tragus of the ear in the wearing state, and the second inner side surface IS2 can be bent in the thickness direction X1 relative to the first inner side surface IS1 in the direction away from the outer side surface OS, for example, the part of the hook-shaped structure 12 located in the front side of the ear in the wearing state is bent relative to the movement module 11. In this way, even if the earphone 10 has to go over the tragus, a space for accommodating the tragus can be formed between the hook-shaped structure 12 and the movement module 11, that is, the earphone 10 can avoid the tragus, which is conducive to reducing the risk of the earphone 10 pressing the tragus, thereby improving the comfort of the earphone 10 in the wearing state.

In some embodiments, the angle between the second inner side surface IS2 and the first inner side surface IS1 may be between 119° and 170°. If the angle is too small, it is easy to violate the original intention of the earphone 10 to avoid the tragus; if the angle is too large, it is easy to reduce the fit between the earphone 10 and the user's skin when the earphone is worn.

In some embodiments, the distance between the end of the second inner side surface IS2 away from the core module 11 and the first inner side surface IS1 in the thickness direction X1 may be between 1.6 mm and 2.4 mm. If the distance is too small, it is easy to violate the original intention of the earphone 10 to avoid the tragus; if the distance is too large, it is easy to reduce the fit between the earphone 10 and the user's skin when worn.

As an example, the transition portion 12a may include an adapter shell 122 connected to the movement module 11, and at least a portion of the adapter shell 122 may be located on the front side of the ear in the worn state. In other words, the portion of the adapter shell 122 located on the front side of the ear in the worn state may serve as a portion of the transition portion 12a or the entirety of the transition portion 12a. Among them, the adapter shell 122 may be configured as a tapered structure, for example, the area of the outer surface of the adapter shell 122 on a reference cross section perpendicular to the length direction of the hook-shaped structure 12 may gradually decrease in the positive direction along the length direction of the hook-shaped structure 12 and away from the movement module 11. With such a configuration, the transition portion 12a may also be configured as a tapered structure to make the earphone 10 smoother and more symmetrical in overall appearance.

Furthermore, the adapter shell 122 can extend toward the side of the first inner side surface IS1 away from the outer side surface OS in the thickness direction X1, so as to allow the earphone 10 to avoid the tragus when worn, and allow a portion of the hook-shaped structure 12 to be offset from the projection of the movement module 11 in a direction perpendicular to the thickness direction X1, so that when worn, the upper ear root of the ear can provide less support force to the earphone 10.

In some embodiments, in the non-wearing state, the elastic metal wire 121 can pass through the plane where the first inner side surface IS1 is located to allow a portion of the hook-shaped structure 12 to overlap with the projection of the movement module 11 in a direction perpendicular to the thickness direction X1, and then in the wearing state, the elastic metal wire 121 clamps the ear and adheres to the ear together with the movement module 11 due to elastic deformation.

In some embodiments, in the non-wearing state, the plane where the elastic metal wire 121 is located may intersect with the first inner side surface IS1, so as to allow a portion of the hook-shaped structure 12 to overlap with the projection of the movement module 11 in a direction perpendicular to the thickness direction X1, and then in the wearing state, the elastic metal wire 121 and the movement module 11 clamp the ear and adhere to the ear due to elastic deformation. In the non-wearing state, the angle between the elastic metal wire 121 and the first inner side surface IS1 may be between 15° and 30°.

In some embodiments, the movement housing 111 may include a movement inner housing 1111 and a movement outer housing 1112 connected to the movement inner housing 1111, for example, the two are buckled in the thickness direction X1. The movement inner housing 1111 may be closer to the ear than the movement outer housing 1112 in the wearing state, and the sound outlet 111a may be provided on the movement inner housing 1111. Further, at least one of the movement inner housing 1111 and the movement outer housing 1112 may be plugged and fixed with the adapter housing 122, for example, the movement inner housing 1111 and the adapter housing 122 shown in FIG. 7 are plugged and fixed.

In some embodiments, the movement housing 111 may include a movement inner housing 1111 and a movement outer housing 1112 connected to the movement inner housing 1111, for example, the two are buckled in the thickness direction X1. The movement inner housing 1111 may be closer to the ear than the movement outer housing 1112 when worn, and the sound outlet 111a may be provided on the movement inner housing 1111. Furthermore, one of the movement inner housing 1111 and the movement outer housing 1112 may be provided as an integrally formed structural component with the adapter housing 122, and the other may be fixedly connected to the aforementioned integrally formed structural component. Based on this, for the previous In the one-piece molded structure, the area corresponding to the speaker 112 can be simply regarded as the inner shell 1111 of the movement, and the area with a tapered structure or the area corresponding to the electronic component 15 can be simply regarded as the adapter shell 122.

As an example, in combination with Figures 7 and 3, the earphone 10 may include a movement module 11 and a hook-shaped structure 12 connected to the movement module 11, the movement module 11 may be located at the front side of the ear in the wearing state, and at least part of the hook-shaped structure 12 may be located at the back side of the ear in the wearing state. Among them, the movement module 11 may include a movement housing 111 and a speaker 112 disposed in the movement housing 111, the hook-shaped structure 12 may include a transfer housing 122 connected to the movement housing 111, and at least part of the transfer housing 122 may be located at the front side of the ear in the wearing state. Further, in combination with Figures 24, 15 and 16, the transfer housing 122 may be formed with a accommodating cavity 124 and a through hole 1251 connected to the accommodating cavity 124, and the earphone 10 may include an electrode terminal 151 at least partially disposed in the through hole 1251. Since a receiving cavity 124 is formed in the transfer housing 122, some components can be accommodated in the receiving cavity 124, which is beneficial to saving space in the movement module 11, so as to allow the volume of the speaker 112 to be as large as possible. In addition, the electrode terminal 151 can be arranged on the transfer housing 122, which is beneficial to shortening the distance between the electrode terminal 151 and the speaker 112 in the length direction of the hook structure 12, so as to make full use of the magnetic attraction between the magnetic circuit system of the speaker 112 (which includes a magnet) and the magnetic attraction structure in the charging box, so that the electrode terminal 151 can more reliably contact the electrode terminal in the charging box.

In some embodiments, the electrode terminal 151 can be oriented toward the front of the ear when worn, so that the electrode terminal 151 can be closer to the speaker 112, which is beneficial for further shortening the distance between the electrode terminal 151 and the speaker 112 in the length direction of the hook structure 12.

In some embodiments, the electrode terminal 151 may include a charging positive terminal 1514 and a charging negative terminal 1515 that are spaced apart from each other. The charging positive terminal 1514 and the charging negative terminal 1515 may be respectively disposed in their respective through holes 1251 to facilitate charging of the earphone 10 through the electrode terminal 151.

In some embodiments, the electrode terminal 151 may include a communication terminal 1516 spaced apart from the positive charging terminal 1514 and the negative charging terminal 1515 , and the communication terminal 1516 may be correspondingly disposed in a corresponding through hole 1251 to facilitate communication connection between the earphone 10 and a charging device such as a charging box.

As an example, in conjunction with FIG. 24 , the distance between the positive charging terminal 1514 and the negative charging terminal 1515 may be greater than the distance between the positive charging terminal 1514 and the communication terminal 1516, and the distance between the positive charging terminal 1514 and the communication terminal 1516 may be greater than the distance between the communication terminal 1516 and the negative charging terminal 1515. The potential of the positive charging terminal 1514 is generally higher than the potential of the communication terminal 1516, and the communication terminal 1516 is generally more easily damaged by high voltage. In order to avoid or reduce the probability of damage to the communication terminal 1516 due to conduction between the positive charging terminal 1514 and the communication terminal 1516 in a limited space, the distance between the positive charging terminal 1514 and the communication terminal 1516 is larger than the distance between the communication terminal 1516 and the negative charging terminal 1515. Furthermore, in order to avoid or reduce the probability of damage to the earphone 10 caused by a short circuit between the positive charging terminal 1514 and the negative charging terminal 1515, the distance between the positive charging terminal 1514 and the negative charging terminal 1515 may be larger than the distance between the communication terminal 1516 and the negative charging terminal 1515. Furthermore, in some embodiments, the distance between the positive charging terminal 1514 and the negative charging terminal 1515 is larger than the distance between the positive charging terminal 1514 and the communication terminal 1516, so that the electrode terminals 151 are arranged as concentratedly as possible to reduce the space occupied by the electrode terminals 151, and the risk of short circuit between the electrode terminals 151 is reduced as much as possible, and the degree of damage to the earphone 10 is minimized.

In some embodiments, when observed along the extension direction of the electrode terminal 151 , the connecting lines between the positive charging terminal 1514 , the negative charging terminal 1515 , and the communication terminal 1516 may form an unequal-sided triangle.

In some embodiments, when observed along the extension direction of the electrode terminal 151, the positive charging terminal 1514, the communication terminal 1516 and the negative charging terminal 1515 can be arranged in a line segment spaced apart from each other, for example, arranged in sequence into a straight line segment. Among them, when observed along the extension direction of the electrode terminal 151, the magnet 127 and the movement module 11 can be located on both sides of the aforementioned straight line segment, respectively. In this arrangement, when the earphone 10 is placed in the charging box, the magnetic circuit system of the speaker 112 forms a first magnetic pair with the permanent magnet or soft magnet in the charging box, and the magnet 127 forms a second magnetic pair with another permanent magnet or soft magnet in the charging box. Therefore, the electrode terminal 151 is located between the first magnetic pair and the second magnetic pair and more reliably contacts the electrode terminal in the charging box. Furthermore, the area of the outer surface of the adapter housing 122 on the reference cross section perpendicular to the length direction of the hook structure 12 can be gradually reduced in the positive direction along the length direction of the hook structure 12 and away from the movement module 11, that is, the adapter housing 122 can be set to a tapered structure to allow the transition portion 12a of the hook structure 12 to be set to a tapered structure, so that the overall appearance of the earphone 10 is smoother and more symmetrical. Among them, the center of the magnet 127 has a first distance, a second distance and a third distance from the center of the charging positive terminal 1514, the communication terminal 1516 and the charging negative terminal 1515, respectively, and the third distance can be greater than the first distance and the second distance, respectively, which is conducive to reducing the risk of the adapter housing 122 having too small a wall thickness due to the magnet 127 being too close to the charging negative terminal 1515, thereby increasing the structural strength of the adapter housing 122.

As an example, in combination with Figures 7 and 24, the movement shell 111 may have a first inner side surface IS1 facing the ear along the thickness direction X1 and an outer side surface OS away from the ear in the wearing state, and the thickness direction X1 is defined as the direction in which the movement module 11 is close to or away from the ear in the wearing state. The adapter shell 122 may have a second inner side surface facing the ear along the thickness direction X1 in the wearing state (for example, the second inner side surface IS2 of the transition portion 12a). The second inner side surface IS2 may be bent in the thickness direction X1 relative to the first inner side surface IS1 in the direction away from the outer side surface OS, for example, the adapter shell 122 is bent relative to the movement module 11. Furthermore, the electrode terminal 151 is exposed on the second inner side surface IS2 to facilitate contact with the electrode terminal in the charging box, and the extension direction of the electrode terminal 151 can be aligned with the speaker 112. The winding direction of the coil (i.e., the voice coil mentioned above) (such as shown in C1 in FIG. 25 ) is intersected. This arrangement allows the suction direction of the first magnetic pair to intersect with the suction direction of the second magnetic pair, which is beneficial to reduce the risk of the earphone 10 shaking in the charging box, so that the electrode terminal 151 can more reliably contact the electrode terminal in the charging box.

Furthermore, the movement module 11 may include a main control circuit board 13 disposed in the movement housing 111 and coupled to the speaker 112. The main control circuit board 13 and the speaker 112 are stacked in the thickness direction X1 and are located on the side of the speaker 112 facing the outer side surface OS. Such a configuration is beneficial to increase the area of the speaker 112 when the size of the movement housing 111 on the reference section perpendicular to the thickness direction X1 is limited, and to make the speaker 112 closer to the permanent magnet or soft magnet in the charging box, thereby increasing the suction force of the first magnetic attraction pair, so that the electrode terminal 151 can more reliably contact the electrode terminal in the charging box.

Based on the above description, the earphone 10 may include a charging positive terminal 1514, a charging negative terminal 1515 and a communication terminal 1516 which are spaced apart from each other. The charging positive terminal 1514, the charging negative terminal 1515 and the communication terminal 1516 may be located on the same side of the ear when worn, for example, all three are located on the front side of the ear. The spacing between the charging positive terminal 1514 and the charging negative terminal 1515 may be greater than the spacing between the charging positive terminal 1514 and the communication terminal 1516, and the spacing between the charging positive terminal 1514 and the communication terminal 1516 may be greater than the spacing between the communication terminal 1516 and the charging negative terminal 1515. The potential of the charging positive terminal 1514 is generally higher than the potential of the communication terminal 1516, and the communication terminal 1516 is generally more easily damaged by high voltage. In order to avoid or reduce the probability of damage to the communication terminal 1516 due to conduction between the charging positive terminal 1514 and the communication terminal 1516 in a limited space, the distance between the charging positive terminal 1514 and the communication terminal 1516 is larger than the distance between the communication terminal 1516 and the charging negative terminal 1515. In addition, in order to avoid or reduce the probability of damage to the earphone 10 caused by a short circuit between the charging positive terminal 1514 and the charging negative terminal 1515, the distance between the charging positive terminal 1514 and the charging negative terminal 1515 can also be larger than the distance between the communication terminal 1516 and the charging negative terminal 1515. Further, in some embodiments, the distance between the charging positive terminal 1514 and the charging negative terminal 1515 is greater than the distance between the charging positive terminal 1514 and the communication terminal 1516, so that the electrode terminals 151 are arranged as concentratedly as possible to reduce the space occupied by the electrode terminals 151, while minimizing the risk of short circuit between the electrode terminals 151 and minimizing the damage to the earphone 10.

In some embodiments, at least one of the positive charging terminal 1514 , the negative charging terminal 1515 and the communication terminal 1516 is disposed at the adapter housing 122 , for example, all three are disposed at the adapter housing 122 , and for another example, all three are disposed at the battery housing 123 .

In some embodiments, at least one of the charging positive terminal 1514 , the charging negative terminal 1515 and the communication terminal 1516 is disposed at the movement housing 111 , for example, any one is disposed at the movement housing 111 and the remaining two are disposed at the adapter housing 122 .

As an example, in combination with FIG. 25 and FIG. 7 , the movement module 11 includes a movement housing 111, and a speaker 112 and a main control circuit board 13 disposed in the movement housing 111, and the speaker 112 is electrically connected to the main control circuit board 13. The main control circuit board 13 is used to process signals and transmit the processed electrical signals to the speaker 112, and the speaker 112 is used to convert the received electrical signals into mechanical vibrations. Among them, the speaker 112 may include a first coil 1125 (that is, the voice coil mentioned above) coupled to the main control circuit board 13, the first coil 1125 may extend into the magnetic circuit system of the speaker 112, and a second coil 134 may be disposed on the main control circuit board 13. Further, the winding axial direction of the second coil 134 (for example, as shown in C2 in FIG. 25) and the winding axial direction of the first coil 1125 (for example, as shown in C1 in FIG. 25) may be arranged crosswise. Such a configuration is conducive to weakening the mutual inductive coupling between the second coil 134 and the first coil 1125, thereby reducing the mutual influence between the two coils, for example, reducing the risk of the current change of the second coil 134 causing noises such as "rustling" and "squeaking" in the speaker 112 through mutual inductance. In addition, since the mutual inductive coupling between the first coil 1125 and the second coil 134 is reduced, the main control circuit board 13 can be allowed to be closer to the speaker 112, which is conducive to making the movement module 11 more compact in structure.

In some embodiments, the main control circuit board 13 and the speaker 112 can be stacked on the winding axis of the first coil 1125. This arrangement is conducive to setting a larger speaker 112 in the movement housing 111 when the volume of the movement housing 111 is constant, thereby increasing the sensitivity and maximum volume of the earphone 10. Among them, the winding axis of the second coil 134 and the winding axis of the first coil 1125 can be orthogonal, for example, the winding axis of the second coil 134 and the winding axis of the first coil 1125 are respectively parallel to the length direction Y1 and the thickness direction X1, so as to further weaken the mutual inductive coupling between the second coil 134 and the first coil 1125. Further, due to the weakening of the mutual inductive coupling between the second coil 134 and the first coil 1125, the distance between the main control circuit board 13 and the speaker 112 on the winding axis of the first coil 1125 can be further reduced, so as to facilitate the movement module 11 to be more compactly arranged in the thickness direction X1, and reduce the volume of the movement module 11. In some embodiments, the distance between the main control circuit board 13 and the speaker 112 in the winding axis direction of the first coil 1125 may be less than or equal to 3 mm. The second coil 134 may be arranged on the side of the main control circuit board 13 away from the speaker 112 or on the other side facing the speaker 112. For example: the second coil 134 is arranged on the side of the main control circuit board 13 away from the speaker 112, and the distance between the main control circuit board 13 and the speaker 112 in the winding axis direction of the first coil 1125 is less than or equal to 1 mm. For another example: the second coil 134 is arranged on the other side of the main circuit board 13 facing the speaker 112, and the distance between the main circuit board 13 and the speaker 112 in the winding axis direction of the first coil 1125 is less than or equal to 2 mm.

In the present application, the movement module 11 may include an inductor or a transceiver coil or other components, and the inductor or transceiver coil component may include a second coil 134. In some embodiments, the movement module 11 may include a switching power supply, which may be used to achieve voltage conversion, and the switching power supply may be arranged on the main control circuit board 13 and electrically connected to the main control circuit board 13; the inductor of the switching power supply may be the second coil 134, which is used to achieve energy storage, filtering, etc. In some embodiments, the movement module 11 may include a communication device, which may be used to achieve The headset 10 is used in conjunction with terminal devices such as mobile phones and computers. The communication device is arranged on the main control circuit board 13 and is electrically connected to the main control circuit board 13; the communication device may include a transceiver coil to realize signal reception and transmission, and the transceiver coil of the communication device may be a second coil 134.

As an example, in combination with FIG. 26 and FIG. 7 , the main control circuit board 13 may include a substrate 135, a metal trace 136 formed on the substrate 135, and a load 137 disposed on the substrate 135. The substrate 135 may have electrical insulation, the metal trace 136 may be printed on the substrate 135 by means of copper etching and other techniques, and the load 137 may be soldered on the substrate 135 by means of surface mounting and other techniques, and connected to the metal trace 136. The main control circuit board 13 may use any one of a single-sided board, a double-sided board, and a multi-layer board as required. Among them, the metal trace 136 may include a power trace 1361 and a loop trace 1362 for connecting the load 137 to an external power source (e.g., a battery 14), the power trace 1361 and the loop trace 1362 are arranged side by side, and the current direction of the power trace 1361 is opposite to the current direction of the loop trace 1362, so as to allow a circuit loop to be formed between the load 137 and the external power source. Further, the ratio between the absolute value of the difference between the width of any one of the power trace 1361 and the loop trace 1362 and the width mean and the width mean may be less than or equal to 20%, the aforementioned ratio may preferably be less than or equal to 15%, and the aforementioned ratio may more preferably be less than or equal to 10%. Among them, the aforementioned width mean is defined as the average value of the widths of the power trace 1361 and the loop trace 1362. In short, the aforementioned ratio can be used to measure the degree to which the width of any one of the power trace 1361 and the loop trace 1362 deviates from the average value of the widths of the two. Therefore, the smaller the aforementioned ratio is, the closer the width of the power trace 1361 is to the width of the loop trace 1362. With such arrangement, since the current direction of the power trace 1361 is opposite to the current direction of the loop trace 1362, the magnetic field generated by the power trace 1361 and the magnetic field generated by the loop trace 1362 can cancel each other out when the vectors are superimposed in three-dimensional space. Since the difference between the width of the power trace 1361 and the width of the loop trace 1362 is small, the total magnetic field intensity of the magnetic field generated by the power trace 1361 and the magnetic field generated by the loop trace 1362 after the vector superposition in three-dimensional space is small, which is beneficial to reduce the electromagnetic interference of the metal trace 136 on the main control circuit board 13 to other electronic components, for example, reducing the risk of the speaker 112 producing noises such as "rustling" and "squeaking" due to the magnetic field generated by the metal trace 136 on the main control circuit board 13.

In some embodiments, the extension direction of the power line 1361 and the extension direction of the loop line 1362 can be set in parallel, which is conducive to the magnetic field generated by the power line 1361 and the magnetic field generated by the loop line 1362 to offset each other. Among them, the thickness of the power line 1361 and the thickness of the loop line 1362 can be equal, which is conducive to simplifying the molding process of the metal line 136, and the width of the power line 1361 and the width of the loop line 1362 can be equal, which is conducive to the magnetic field generated by the power line 1361 and the magnetic field generated by the loop line 1362 to offset each other. Further, the length of the power line 1361 and the length of the loop line 1362 can be equal, which is conducive to the magnetic field generated by the power line 1361 and the magnetic field generated by the loop line 1362 to offset each other. It is worth noting that the thickness of the loop line 1362 can refer to its size in the thickness direction of the main control circuit board 13 (for example, parallel to the thickness direction X1).

In some embodiments, the power trace 1361 and the loop trace 1362 may be disposed on the same layer on the substrate 135 .

In some embodiments, the power trace 1361 and the loop trace 1362 may be arranged on different layers on the substrate 135 , and the orthographic projections of the power trace 1361 and the loop trace 1362 in the thickness direction of the main control circuit board 13 may at least partially overlap.

In some implementations, the load 137 may be a component such as a main control chip or a communication chip.

In some embodiments, the main control circuit board 13 may include a connector 138, and the connector 138 may be disposed on the substrate 135 by means of surface mounting or other technologies. One end of the power supply line 1361 and the loop line 1362 are respectively connected to the connector 138, and the other end is respectively connected to the load 137, so that the load 137 is connected to the external power supply. For example, the battery 14 is used as an external power supply, and the battery 14 is connected to one end of the flexible circuit board 16 through the wire 129, and the other end of the flexible circuit board 16 is buckled with the connector 138, so that the battery 14 is connected to the main control circuit board 13.

Hereinafter, any one of the embodiments described in FIGS. 27 to 36 or any combination thereof are the relevant contents of the priority text. Among them, the structure of at least a part of the technical features, the relative position or connection relationship between the technical features, the role played by the technical features, etc. in any one of the embodiments described in FIGS. 2 to 18 or any combination thereof are the same or similar to the structure of at least a part of the technical features, the relative position or connection relationship between the technical features, the role played by the technical features, etc. in any one of the embodiments described in FIGS. 27 to 36 or any combination thereof. For example, the structures of the "earphone 10", "movement module 11", "hook-shaped structure 12", "speaker 112", "main control circuit board 13", "battery 14", etc. in any embodiment or combination described in Figures 2 to 18 are respectively the same or similar to the structures of the "earphone 20", "holding portion 23", "hook-shaped portion 21", "movement 24", "mainboard 25", "battery 26", etc. in any embodiment or combination described in Figures 27 to 36, and the relative positions and connection relationships between them are also the same or similar. For another example, the relative position between the "free end FE" and the "connection end CE" in any embodiment or combination described in Figures 2 to 18 is the same or similar to the relative position between the "free end 231" and the "connection end 232" in any embodiment or combination described in Figures 27 to 36. The relative position between the "adapter housing 122" and the "battery housing 123" in any embodiment or combination described in Figure 18 is the same as or similar to the relative position between the "connecting section 211" and the "free section 212" in any embodiment or combination described in Figures 27 to 36; for example, "the relative position or connection relationship between the flexible insert 1131 and the flexible coating 1132 and the movement housing 111, and the role they play" in any embodiment or combination described in Figures 2 to 18 is the same as or similar to "for the composite structure of sponge and silicone, the sponge can be mainly located at the free end 231 of the retaining portion 23, so that the retaining portion 23 contacts the ear through the sponge and the silicone thereon, that is, the area of the retaining portion 23 where the sponge is located is softer than other areas". It is worth noting that: due to the large number of technical features and the complex relative positions or connection relationships between the technical features, it is impossible to list them one by one here; but the technology in this field Personnel should generally be aware of the correspondence between technical features that are not listed, the relative positions or connections between technical features, the roles played by technical features, etc.

In conjunction with FIG. 27 and FIG. 28 , the earphone 20 may include a hook portion 21 and a retaining portion 23 connected to the hook portion 21, at least part of the hook portion 21 is used to be hung between the back side of the user's ear and the head, and the retaining portion 23 is used to contact the front side of the ear to allow the hook portion 21 and the retaining portion 23 to clamp the ear together. In other words, in three-dimensional space, the hook portion 21 and the retaining portion 23 may not be coplanar. Among them, the retaining portion 23 may have a thickness direction, a length direction and a width direction that are orthogonal to each other, the aforementioned thickness direction is defined as the direction in which the retaining portion 23 approaches or moves away from the ear in the wearing state, and the length of the retaining portion 23 in the aforementioned length direction is greater than or equal to the width of the retaining portion 23 in the aforementioned width direction. Based on this, the hook portion 21 may include a connecting segment 211 connected to the retaining portion 23 and a free segment 212 connected to the connecting segment 211, and the connecting segment 211 and the free segment 212 are respectively located on opposite sides of the retaining portion 23 in the aforementioned width direction. Further, on a reference plane perpendicular to the aforementioned thickness direction (e.g., the plane where the paper is located), the maximum spacing between the connecting section 211 and the retaining portion 23 in the aforementioned width direction (e.g., as shown by T1 in FIG. 27 ) may be between 10 mm and 17 mm. Preferably, the aforementioned maximum spacing may be between 11 mm and 14 mm. In this way, it is not only beneficial to increase the distance between the center of gravity of the retaining portion 23 and the upper ear root of the ear, that is, to lower the center of gravity of the retaining portion 23 in the wearing state, but also beneficial to increase the distance between the center of mass of the retaining portion 23 and the anti-helix of the ear, that is, the moment of inertia of the earphone 20 relative to the anti-helix or upper ear root of the ear is increased during the user's movements such as shaking the head left and right, lowering the head and raising the head, and jumping up and down, thereby improving the stability of the earphone 20 in wearing.

It should be noted that: based on the ANSI: S3.36, S3.25 and IEC: 60318-7 standards, a simulator containing a head and its (left and right) ears can be made, such as GRAS 45BC KEMAR, so the descriptions such as "the user wears headphones" or "the headphones are in a wearing state" in this application can refer to the headphones being worn on the ears of the aforementioned simulator. Based on this, the "wearing state" described in this application can refer to the normal wearing state after the headphones are worn on the ears of the aforementioned simulator; for the convenience of description, the aforementioned normal wearing state can be further illustrated from the perspectives of the front side and the back side of the ear, such as the normal wearing state shown in Figures 29 and 30. Of course, due to individual differences among users, the actual wearing state of the headphones 20 may be somewhat different from the aforementioned normal wearing state. Further, the center of gravity described in this application refers to the point of action of the combined force of the earth's gravity on each tiny part of the object, and the center of mass described in this application refers to an imaginary point on the material system where the mass is considered to be concentrated. Generally, it can be simply considered that the gravitational field of our environment is uniform, so the center of mass and the center of gravity can be simply regarded as coincident. Based on this, the center of gravity of an object (such as the retaining portion 23) can be found with a plumb line. In order to facilitate the measurement of the center of gravity of the retaining portion 23, the retaining portion 23 can be separated from the earphone 20 along the reference line RL shown in FIG. 27. Based on this, the reference line RL can be the dividing line between the hook portion 21 and the retaining portion 23. For example: if the hook portion 21 has an elastic metal wire built in, and the retaining portion 23 is a plastic part, and the two are plug-in connected, then the retaining portion 23 can be removed from the earphone 20 by destroying the plug-in connection relationship between the two. For another example: if the hook portion 21 and the retaining portion 23 are respectively plastic parts, and the two are connected by at least one of gluing, snapping, and plugging, then the retaining portion 23 can also be removed from the earphone 20 by destroying the connection relationship between the two.

Furthermore, the earphone 20 may also include a movement 24, a mainboard 25 and a battery 26. Among them, the movement 24 is mainly used to convert electrical signals into corresponding mechanical vibrations (that is, "sound"), and can be electrically connected to the mainboard 25 and the battery 26 through corresponding conductors; the mainboard 25 is mainly used to control the sound of the movement 24; the battery 26 is mainly used to provide electrical energy for the sound of the movement 24. Of course, the earphone 20 described in the present application may also include microphones such as microphones and pickups, and may further include communication devices such as Bluetooth, which are electrically connected to the mainboard 25 and the battery 26 through corresponding conductors to achieve corresponding functions. Further, when the earphone 20 is in a wearing state, since the holding portion 23 is mainly located on the front side of the user's ear, as shown in Figure 29, the holding portion 23, in addition to being used to set the movement 24, can also be set with some function keys that facilitate the user to interact with the earphone 20. Based on this, the mainboard 25 can also be set in the holding portion 23 to shorten the wiring distance between the movement 24 and other such as function keys and the mainboard 25.

As an example, in conjunction with Figures 29 and 27, in the worn state, and observed along the direction of the human coronal axis, the angle between the length direction of the retaining portion 23 and the direction of the human sagittal axis (for example, as shown in θ) can be between 15° and 60°. Preferably, the aforementioned angle can be between 25° and 45°. In particular, in conjunction with Figures 29 and 27, since the retaining portion 23 is generally arranged as a regular structure, for example, the outer shape of the retaining portion 23 is arranged as a rounded rectangle, the retaining portion 23 is at least symmetrically arranged in outer shape relative to a symmetry axis parallel to the length direction of the retaining portion 23 (for example, as shown by the dotted line SA), that is, the angle θ can be the angle between the symmetry axis SA and the human sagittal axis Y.

In some embodiments, such as shown in FIG. 27 , the holding portion 23 has a free end 231 not connected to the hook portion 21 and a connecting end 232 connected to the hook portion 21. The free end 231 of the holding portion 23 may be further away from the end of the free section 212 of the hook portion 21 away from the connecting section 211 than the connecting end 232 of the holding portion 23. At this time, in the wearing state, and observed along the direction of the human coronal axis, as shown in FIG. 29 , the free end 231 of the holding portion 23 not connected to the hook portion 21 is closer to the top of the user's head than the connecting end 232 of the holding portion 23 connected to the hook portion 21. In this way, the holding portion 23 is tilted relative to the sagittal axis of the human body, so that the holding portion 23 is tilted toward the external auditory canal of the ear in the wearing state, so as to increase the distance between the center of gravity of the holding portion 23 and the upper ear root of the ear, that is, to reduce the center of gravity of the holding portion 23 in the wearing state, which is conducive to improving the stability of the earphone 20 in wearing.

As an example, in conjunction with FIG29 , in the wearing state, the free end 231 of the retaining portion 23 contacts the antihelix of the ear, so that the retaining portion 23 presses the ear at least at the antihelix of the ear; when the retaining portion 23 is projected onto the ear along the direction of the human coronal axis, it partially overlaps with the concha cavity of the ear, that is, the concha cavity of the ear is at least partially covered by the retaining portion 23. Preferably, in the wearing state, the retaining portion 23 When projected onto the ear along the direction of the human coronal axis, it is at least partially offset from the external auditory canal of the ear, that is, the external auditory canal of the ear is at least partially not covered by the retaining portion 23, so as to "liberate" the external auditory canal of the ear. In this way, compared with the related art in which the concha hyalaria of the ear is at least partially covered by the retaining portion 23, the concha cavity of the ear in this embodiment is at least partially covered by the retaining portion 23, that is, the retaining portion 23 is inclined toward the external auditory canal of the ear in the wearing state, so that the distance between the center of mass of the retaining portion 23 and the antihelix of the ear is increased, that is, the rotational inertia of the earphone 20 relative to the antihelix or the upper ear root of the ear is increased during the user's movements such as shaking the head left and right, lowering and raising the head, and jumping up and down, which is conducive to improving the stability of the earphone 20 in wearing.

As an example, in conjunction with FIG. 29 , on the reference plane (e.g., YZ plane) where the human body sagittal plane is located, the ratio between the distance between the center of gravity of the retaining portion 23 (e.g., shown in G) and the free end 231 of the retaining portion 23 (e.g., shown in T2) and the length of the retaining portion 23 (e.g., shown in L) can be between 0.5 and 0.75. In this way, under other conditions such as the tilted setting of the retaining portion 23, the center of gravity of the retaining portion 23 is further away from the free end 231 of the retaining portion 23, so that the distance between the center of mass of the retaining portion 23 and the anti-helix of the ear is increased, that is, the moment of inertia of the earphone 20 relative to the anti-helix or the upper ear root of the ear is increased during the user's movements such as shaking the head left and right, lowering the head and raising the head, and jumping up and down, which is conducive to improving the stability of the earphone 20 in wearing. Among them, the reference plane where the human body sagittal plane is located can also be defined as a reference plane perpendicular to the thickness direction of the retaining portion 23.

Furthermore, the length of the retaining portion 23 (such as shown by L in FIG. 29 ) may be between 22 mm and 35 mm. Preferably, the aforementioned length may be between 25 mm and 32 mm. If the length of the retaining portion 23 is too short, for example, so short that it cannot contact the antihelix of the ear, it is not conducive to the retaining portion 23 and the hook portion 21 clamping the user's ear together; and if the length of the retaining portion 23 is too long, for example, so long that a large part of it protrudes from the antihelix of the ear, it is easy for the user or a third party to touch the earphone 20, which is not conducive to the reliability of the earphone 20 in wearing.

Further, along the length direction of the holding portion 23 and in the positive direction from the free end 231 of the holding portion 23 to the connecting end 232 of the holding portion 23, the ratio between the width of the holding portion 23 at 3/4 of its length and the width of the holding portion 23 at 1/4 of its length may be between 1 and 2. Preferably, the aforementioned ratio may be between 1 and 1.3. In this way, it is beneficial to shift the center of gravity (i.e., the center of mass) of the holding portion 23 toward its connecting end 232, thereby facilitating the increase of the distance between the center of gravity of the holding portion 23 and the upper ear root of the ear, and the increase of the distance between the center of mass of the holding portion 23 and the antihelix of the ear.

Based on the above description, the movement 24 can be arranged on the holding part 23, and the holding part 23 can also be tilted toward the external auditory canal of the ear when being worn, so that the movement 24 can be located at the connecting end 232 of the holding part 23, so as to shorten the distance between the movement 24 (specifically, the sound outlet hole on the holding part 23) and the external auditory canal of the ear, which is conducive to increasing the intensity of the sound emitted by the movement 24 heard by the user. Furthermore, if the connecting end 232 of the holding part 23 is arranged wider than its free end 231, the volume of the movement 24 allowed to be arranged at the connecting end 232 of the holding part 23 can also be larger, which is conducive to increasing the intensity of the sound emitted by the movement 24.

As an example, the battery 26 can be arranged in the hook 21 (not shown), specifically, the battery 26 can be arranged close to the free section 212 of the hook 21. This is conducive to increasing the capacity of the battery 26 and balancing the weight distribution of the earphone 20.

As an example, for example, in Figures 27 and 28, the movement 24, the main board 25 and the battery 26 can be arranged in the holding portion 23. In this way, since there is no interference from the battery 26, the hook-shaped portion 21 can be contoured to be a structure that fits better with the back side of the ear (and the head), which is conducive to improving the stability of the earphone 20 in wearing. Among them, the movement 24 can be located at the connecting end 232 of the holding portion 23, and the battery 26 can be located at the free end 231 of the holding portion 23. At this time, the position of the center of gravity of the holding portion 23 can be adjusted by changing the volume of the movement 24, the capacity of the battery 26 and other parameters. For example: the battery 26 is closer to the free end 231 than the movement 24, and the size of the movement 24 in the width direction of the holding portion 23 is larger than the size of the battery 26 in the aforementioned width direction.

In some other embodiments, such as FIG. 31 or FIG. 34 , the free end 231 of the retaining portion 23 may be closer to the end of the free section 212 of the hook-shaped portion 21 away from the connecting section 211 than the connecting end 232 of the retaining portion 23. At this time, in the wearing state, and observed along the direction of the human coronal axis, as shown in FIG. 33 or FIG. 36 , the free end 231 of the retaining portion 23 that is not connected to the hook-shaped portion 21 is farther away from the top of the user's head than the connecting end 232 of the retaining portion 23 that is connected to the hook-shaped portion 21. In this way, the retaining portion 23 is also tilted relative to the sagittal axis of the human body to increase the distance between the center of gravity of the retaining portion 23 and the upper ear root of the ear, that is, to lower the center of gravity of the retaining portion 23 in the wearing state, which is conducive to improving the stability of the earphone 20 in wearing.

As an example, in the wearing state, the free end 231 of the holding portion 23 that is not connected to the hook-shaped portion 21 can be extended into the concha cavity of the ear, so as to allow the holding portion 23 to be tilted relative to the sagittal axis of the human body. Similar to the above embodiment, the movement 24, the main board 25 and the battery 26 can also be arranged in the holding portion 23, so that the contoured structure of the hook-shaped portion 21 will not interfere with the battery 26. The main difference from the above embodiment is that the movement 24 can be closer to the free end 231 than the battery 26 to shorten the distance between the movement 24 (specifically, the sound outlet hole on the holding portion 23) and the external auditory canal of the ear, which is conducive to increasing the intensity of the sound emitted by the movement 24 heard by the user. It is worth noting that in this embodiment, although the free end 231 of the holding portion 23 is arranged to extend into the concha cavity of the ear, the holding portion 23 does not extend into the external auditory canal of the ear, so as to "liberate" the external auditory canal. Among them, taking into account the differences between different groups of people, when worn, the retaining portion 23 may cover a portion of the external auditory canal. This scenario cannot be confused with the retaining portion 23 being directly inserted into the external auditory canal, that is, the two are different.

Furthermore, the free end 231 of the holding portion 23 can abut against or be pressed against the concha cavity of the ear. For example, the holding portion 23 abuts against the concha cavity of the ear in its length direction, and for another example, the holding portion 23 is pressed against the concha cavity of the ear in its thickness direction. In this way, in addition to the hook-shaped portion 21 exerting a clamping force on the back side of the ear and forming a friction force, the holding portion 23 can also abut against the concha cavity of the ear. The earphone 20 is provided with abutting force or clamping force and a friction force and other forces, thereby improving the stability of the earphone 20 when being worn.

Furthermore, the inventors of the present application have found in their long-term research and development work that when the free end 231 of the holding portion 23 is configured to extend into the concha cavity of the ear, the holding portion 23 will at least partially cover the tragus of the ear; and the tragus of the ear generally protrudes toward the front side of the ear in a direction away from the user's head, making it easy to be pressed by the holding portion 23, which may cause discomfort when wearing the earphone 20 for a long time. For this reason, the holding portion 23 is configured to avoid the tragus of the ear in the wearing state to avoid squeezing the tragus of the ear, thereby improving the wearing comfort of the earphone 20.

As an exemplary embodiment, in combination with Figures 31 and 32, on the inner side of the retaining portion 23 facing the ear, the connecting end 232 of the retaining portion 23 partially protrudes compared to the free end 231, so that the inner side of the retaining portion 23 facing the ear is not flat as a whole. In the worn state, the connecting end 232 of the retaining portion 23 contacts the skin around the tragus, so that other areas of the retaining portion 23 can avoid the tragus of the ear. Furthermore, since the connecting end 232 of the retaining portion 23 partially protrudes relative to the free end 231, and the battery 26 can be arranged at the connecting end 232 of the retaining portion 23, the size of the battery 26 in the thickness direction of the retaining portion 23 is increased, which is beneficial to increase the capacity of the battery 26, thereby extending the standby/use time of the headset 20.

As an exemplary embodiment, in conjunction with Figures 34 and 35, the connection end 232 of the retaining portion 23 is bent relative to the free end 231, so that the retaining portion 23 is not a plane as a whole. In the worn state, the connection end 232 of the retaining portion 23 contacts the skin around the tragus, so that other areas of the retaining portion 23 can avoid the tragus of the ear. Furthermore, since the connection end 232 of the retaining portion 23 is bent relative to the free end 231, and the movement 24 and the battery 26 can be respectively arranged at the free end 231 and the connection end 232 of the retaining portion 23, the bend between the connection end 232 and the free end 231 of the retaining portion 23 can exactly correspond to the area between the movement 24 and the battery 26.

It should be noted that: for the two embodiments shown in Figures 31 to 36, the main difference lies in: the position where the connecting end 232 of the retaining portion 23 contacts the user's skin when worn, wherein compared with the embodiments shown in Figures 31 to 33, the position where the connecting end 232 of the retaining portion 23 contacts the user's skin when worn in the embodiments shown in Figures 34 to 36 is closer to the upper ear root of the ear, that is, closer to the top of the user's head.

In addition to optimizing the retaining portion 23 and the related structures therein, optimizing the weight distribution of the earphone 20 and the clamping force provided by the earphone 20 is also beneficial to improving the stability of the earphone 20 in wearing.

As an example, the ratio between the mass of the hook-shaped portion 21 and the mass of the retaining portion 23 may be between 1/9 and 1/2. Preferably, the aforementioned ratio may be between 1/6.5 and 1/3.5. In this way, when other parameters such as the distance between the center of gravity of the retaining portion 23 and the upper ear root of the ear and the distance between the center of mass of the retaining portion 23 and the antihelix of the ear are constant, the stability of the earphone 20 in wearing is increased by adjusting parameters such as the mass of the hook-shaped portion 21 and the mass of the retaining portion 23. Among them, after the earphone 20 is cut along the reference line RL shown in Figure 27, a part of it can be regarded as the retaining portion 23, and the other part can be regarded as the hook-shaped portion 21, so as to measure the masses of the hook-shaped portion 21 and the retaining portion 23 respectively.

In some embodiments, the hook portion 21 may include an elastic wire connected to the retaining portion 23 and an elastic coating coated on the elastic wire, wherein the elastic wire mainly enables the hook portion 21 to cooperate with the retaining portion 23 to provide a corresponding clamping force, and the elastic coating is mainly used to improve the comfort of the hook portion 21 in wearing and the fit between the hook portion 21 and the back of the ear (and the head). The thickness of the elastic coating may be between 1 mm and 3.5 mm. Preferably, the aforementioned thickness may be between 1.5 mm and 2.5 mm. Further, the Shore hardness of the elastic coating may be 0-40A; preferably, the aforementioned Shore hardness may be 0-10A. Accordingly, the material of the elastic coating may be one or a combination of silicone, foam sponge, thermoplastic polyurethane elastomer, thermoplastic elastomer, etc. Considering that the elastic coating needs to contact the user's skin, the material of the elastic coating may preferably be a single silicone or thermoplastic polyurethane elastomer, or a composite structure of sponge and silicone, such as sponge coated on the elastic wire and silicone coated on the sponge.

In some embodiments, the holding portion 23 may include a shell and an elastic coating coated on the shell, the shell is mainly used to accommodate structural parts such as the movement 24, the mainboard 25, the battery 26, and cooperate with the hook portion 21 to provide a corresponding clamping force, and the elastic coating is mainly used to improve the comfort of the holding portion 23 in wearing and the fit between it and the front side of the ear. Similarly, the thickness of the elastic coating may be between 1 mm and 3.5 mm. Preferably, the aforementioned thickness may be between 1.5 mm and 2.5 mm. Further, the Shore hardness of the elastic coating may be 0-40A; preferably, the aforementioned Shore hardness may be 0-10A. Accordingly, the material of the elastic coating may be one or a combination of silicone, foam sponge, thermoplastic polyurethane elastomer, thermoplastic elastomer, etc. Among them, considering that the elastic coating needs to contact the user's skin, the material of the elastic coating may preferably be a single silicone or thermoplastic polyurethane elastomer, or a composite structure of sponge and silicone, for example, the sponge is coated on the shell and the silicone is coated on the sponge. Further, for the composite structure of sponge and silicone, the sponge can be mainly located at the free end 231 of the holding portion 23, so that the holding portion 23 contacts the ear through the sponge and the silicone thereon, that is, the area where the sponge is located in the holding portion 23 is softer than other areas. The area where the sponge is located in the holding portion 23 can be greater than 2×2 mm ² ; preferably, the aforementioned area can be greater than 5×5 mm ² .

As an example, in the wearing state, the clamping force applied by the retaining portion 23 and the hook portion 21 to the user's ear may be between 0.1 N and 0.5 N. Preferably, the clamping force may be between 0.15 N and 0.3 N. If the clamping force is too large, it is not conducive to the comfort of the earphone 20 in wearing; and if the clamping force is too small, it is not conducive to the stability of the earphone 20 in wearing.

It should be noted that the clamping force described in this application can be measured by a tensile force gauge. The device or the ear of the user, that is, in the wearing state; then the tensile gauge is fixed to the side of the retaining portion 23 away from the ear, and the tensile gauge is pulled immediately to observe; when the side of the retaining portion 23 facing the ear of the user is just separated from the skin of the user, the tension displayed on the tensile gauge is read, and the tension can be simply regarded as the clamping force.

Furthermore, the hook-shaped portion 21 can partially overlap the holding portion 23 when being orthogonally projected onto the holding portion 23 along the thickness direction of the holding portion 23. In this way, in the wearing state, the hook-shaped portion 21 and the holding portion 23 can not only press the ear from the front and back sides of the ear, but also the aforementioned clamping force is mainly manifested as compressive stress, which is conducive to increasing the stability and comfort of wearing.

The specific implementation methods recorded in this application are only exemplary, and one or more technical features in the specific implementation methods are optional or additional, and do not constitute necessary technical features of the inventive concept of this application. In other words, the protection scope of this application covers and is far greater than the specific implementation methods. Moreover, the specific implementation methods recorded in this application are only exemplary, and do not limit the protection scope of this application. Any equivalent device or equivalent process transformation made using the contents of the specification and drawings of this application, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of this application.

Claims

A headset, characterized in that the headset comprises a movement module and a hook-shaped structure connected to the movement module, the movement module is located at the front side of the ear when worn, and the free end of the movement module not connected to the hook-shaped structure extends into the concha cavity of the ear when worn, at least part of the hook-shaped structure is located at the back side of the ear when worn, the movement module has a thickness direction, a length direction and a width direction orthogonal to each other, the thickness direction is defined as the direction in which the movement module approaches or moves away from the ear when worn, the length of the movement module is greater than the width of the movement module, and the length of the movement module is between 22 mm and 12 mm. The hook-shaped structure is between 35mm and 135mm, the hook-shaped structure has a transition portion connected to the movement module, the transition portion is located on the front side of the ear in the worn state, and the area of the outer surface of the transition portion on the reference cross-section perpendicular to the length direction of the hook-shaped structure gradually decreases in the positive direction along the length direction of the hook-shaped structure and away from the movement module. In the worn state, and observed along the direction of the human coronal axis, the connection end of the movement module connected to the hook-shaped structure is closer to the top of the user's head than the free end of the movement module not connected to the hook-shaped structure, and the angle between the length direction and the direction of the human sagittal axis is between 15° and 60°.
The earphone according to claim 1, characterized in that the width of the movement module is between 10 mm and 16 mm.
The earphone according to claim 1 is characterized in that there is a first reference line segment parallel to the width direction and with the longest length between the orthographic projection of the hook structure on a reference plane perpendicular to the thickness direction and the orthographic projection of the movement module on the reference plane, the orthographic projection of the transition portion has an inner edge and an outer edge which are respectively continuous arc-shaped transitions, the outer edge is farther away from the first reference line segment than the inner edge in the length direction, and the overall curvature of the inner edge is greater than the overall curvature of the outer edge.
The earphone according to claim 3, characterized in that the orthographic projection of the transition portion has a second reference line segment, a third reference line segment, a fourth reference line segment and a fifth reference line segment which are parallel to the length direction and spaced in sequence, the starting points and end points of the second reference line segment, the third reference line segment, the fourth reference line segment and the fifth reference line segment respectively fall on the inner edge and the outer edge, the point where the first reference line segment intersects with the orthographic projection of the movement module is used as the starting point of the first reference line segment, and the point where the first reference line segment intersects with the orthographic projection of the hook-shaped structure is used as the end point of the first reference line segment; wherein,

The length of the second reference line segment is between 5 mm and 8 mm, and the extension line of the second reference line segment passes through 1/8 of the first reference line segment;

The length of the third reference line segment is between 4 mm and 6.3 mm, and the extension line of the third reference line segment passes through 1/4 of the first reference line segment;

The length of the fourth reference line segment is between 3.5 mm and 5.4 mm, and the extension line of the fourth reference line segment passes through 3/8 of the first reference line segment;

The length of the fifth reference line segment is between 3 mm and 5 mm, and an extension line of the fifth reference line segment passes through a half of the first reference line segment.
The earphone according to claim 3, characterized in that the length of the first reference line segment is between 13 mm and 20 mm.
The earphone according to claim 3, characterized in that the orthographic projection of the hook-shaped structure and the orthographic projection of the movement module do not overlap.
The earphone according to claim 1 is characterized in that the movement module has an inner side surface facing the ear and an outer side surface away from the ear along the thickness direction in a worn state, the hook-shaped structure includes an adapter shell connected to the movement module and an elastic metal wire connected to the adapter shell, at least part of the adapter shell is located on the front side of the ear in a worn state, and at least part of the elastic metal wire is located on the rear side of the ear in a worn state, the area of the outer surface of the adapter shell on the reference cross-section gradually decreases along the length direction of the hook-shaped structure and in the positive direction away from the movement module, the adapter shell extends toward the side of the inner side surface away from the outer side surface in the thickness direction, and the plane where the elastic metal wire is located intersects with the inner side surface when not worn.
The earphone according to claim 1 is characterized in that the movement module includes a movement shell and a speaker arranged in the movement shell, the movement shell is provided with a sound outlet hole on a side facing the ear in a worn state, the sound waves generated by the speaker are propagated out through the sound outlet hole, and the movement module cooperates with the cavum concha to form an auxiliary cavity connected to the external auditory canal of the ear in a worn state, and the sound outlet hole is at least partially located in the auxiliary cavity.
The earphone according to claim 8, characterized in that the auxiliary cavity is semi-open.
The earphone according to claim 1 is characterized in that, in the wearing state, the movement module and the hook-shaped structure jointly clamp the ear area from the front and back sides of the ear area corresponding to the concha cavity.